Nielsen v. Bell ( 2016 )


Menu:
  •                  This opinion is subject to revision before final
    publication in the Pacific Reporter
    
    2015 UT 14
    IN THE
    SUPREME COURT OF THE STATE OF UTAH
    COREY AND CAROL NIELSEN, for and in behalf of C.N., a minor,
    Appellees,
    v.
    WADE AND LAURA BELL, on behalf of B.B., a minor
    Appellants.
    No. 20131047
    Filed March 24, 2016
    On Appeal of Interlocutory Order
    Third District, Salt Lake Dep’t
    The Honorable Denise P. Lindberg
    No. 120903223
    Attorneys:
    Daniel F. Bertch, Kevin K. Robson, Darren A. Davis,
    Nathan Langston, Salt Lake City, for appellees
    Peter H. Christensen, Kathryn T. Smith, Salt Lake City,
    for appellants
    JUSTICE DURHAM authored the opinion of the Court in which
    CHIEF JUSTICE DURRANT, JUSTICE HIMONAS, and JUDGE ROTH joined.
    ASSOCIATE CHIEF JUSTICE LEE filed a dissenting opinion.
    JUSTICE PARRISH did not participate herein. Court of Appeals
    JUDGE STEPHEN L. ROTH sat.
    JUSTICE DURHAM, opinion of the Court:
    INTRODUCTION
    ¶1     In this appeal we must decide whether there is a minimum
    age below which a child is conclusively deemed incapable of
    negligence under Utah’s common law, and if so, what that minimum
    age is. We hold that children under the age of five, as a matter of
    law, may not be held liable for negligence.
    NIELSEN v. BELL
    Opinion of the Court
    BACKGROUND
    ¶2     Ms. Nielsen was babysitting a boy who was four years and
    nine months old. The boy threw a toy rubber dolphin at her, striking
    her in the eye. Ms. Nielsen had previously received a cornea
    transplant, and, tragically, the impact caused her to lose all vision in
    that eye.
    ¶3    Ms. Nielsen sued the boy’s parents for negligent
    supervision. She also sued the four-year-old boy for negligence. The
    defendants moved for summary judgment, and Ms. Nielsen
    conceded that she had no evidence that the boy’s parents had been
    negligent. She argued, however, that a dispute of material fact
    precluded summary judgment on the negligence claim against the
    boy. Ms. Nielsen further asserted that a four-year-old boy could be
    liable for negligence under Utah law. The district court agreed,
    ruling that it could not find as a matter of law that the boy was
    incapable of negligence. The court therefore granted summary
    judgment on the negligent supervision claim against the parents and
    denied summary judgment on the negligence claim against the child.
    ¶4     We granted a petition for interlocutory review of the
    portion of the district court’s order denying summary judgment on
    the claim against the child. We review de novo the district court’s
    legal determination that a four year old may be held liable for
    negligence. See Daniels v. Gamma W. Brachytherapy, LLC, 
    2009 UT 66
    ,
    ¶ 46, 
    221 P.3d 256
    (interpretations of the common law reviewed for
    correctness).
    ANALYSIS
    ¶5     State courts have adopted a variety of approaches when
    determining whether young children may be held liable for
    negligence. Some states reject fixed age limits, resolving the issue of
    a child’s capacity to be negligent as a matter of law only where
    “reasonable minds could not differ on the matter.” Lester v. Sayles,
    
    850 S.W.2d 858
    , 866 (Mo. 1993). But “the overwhelming majority of
    jurisdictions support the idea of some minimum cutoff age.”
    RESTATEMENT (THIRD) OF TORTS: PHYS. & EMOT. HARM § 10 reporters’
    note, cmt. d (AM. LAW INST. 2010). Courts in these states have
    adopted different cutoff ages for liability, variously holding that
    children under seven, six, five, or four may not be negligent as a
    matter of law. 
    Id. ¶6 In
    order to determine whether the four-year-old
    defendant in this case may be held liable for negligently throwing a
    toy at Ms. Nielsen, we assess which of these approaches to the
    liability of young children most closely matches this court’s
    2
    Cite as: 
    2016 UT 14
                             Opinion of the Court
    precedents. Ms. Nielsen contends that Utah should not recognize a
    fixed age cutoff for negligence liability. The four-year-old defendant,
    on the other hand, asserts that our precedents hold that children
    under the age of seven are conclusively presumed to be incapable of
    negligence. Alternatively, the defendant argues that we have
    recognized that children under the age of five may not be held liable
    for negligence.
    ¶7     We reject the defendant’s contention that this court has
    held that children under seven may not be negligent. We agree,
    however, with the defendant’s alternative argument that children
    under the age of five may not be liable for negligence. We therefore
    reverse the district court’s order denying summary judgment on the
    negligence claim against the four-year-old defendant.
    I. THE ILLINOIS RULE
    ¶8     The defendant first contends that Utah has adopted the
    Illinois rule regarding the liability of young children for negligence.
    Under this rule, children under seven are deemed incapable of
    negligence; for children between seven and fourteen, there is a
    rebuttable presumption against a child’s capacity for negligence; and
    for adolescents fourteen years old and above there is a rebuttable
    presumption of capacity for negligence. RESTATEMENT (THIRD) OF
    TORTS: PHYS. & EMOT. HARM § 10 cmt. b (AM. LAW INST. 2010). The
    Illinois rule is followed in about a dozen states. See 
    id. § 10
    reporters’
    note, cmt. b.
    ¶9     This court first referenced this rule in Nelson v. Arrowhead
    Freight Lines, 
    104 P.2d 225
    , 228 (Utah 1940). But although the Nelson
    court stated that “[o]rdinarily a child under seven years of age is
    conclusively presumed not guilty of contributory negligence,” this
    pronouncement was pure dictum. 1 
    Id. The minor
    accused of
    contributory negligence in that case was sixteen—well above the
    1 While the child accused of negligence in this case is a defendant,
    the issue of a child’s capacity to be negligent has most often been
    addressed in cases where the defendant has asserted that a child
    plaintiff should be charged with contributory negligence. These
    contributory negligence cases are relevant to this case because the
    capacity for negligence of a child defendant and a child plaintiff is
    measured by the same standard. See RESTATEMENT (THIRD) OF TORTS:
    PHYS. & EMOT. HARM § 10 cmt. e (AM. LAW INST. 2010); see also Rowe v.
    Sisters of the Pallottine Missionary Soc‘y, 
    560 S.E.2d 491
    , 498 (W. Va.
    2001) (comparative negligence defense requires proof of each of the
    elements of negligence).
    3
    NIELSEN v. BELL
    Opinion of the Court
    seven-year cutoff age. 
    Id. at 227.
    Moreover, the sixteen-year-old
    plaintiff’s capacity to be negligent was not at issue. Instead, the
    plaintiff argued on appeal that she was entitled to an instruction
    informing the jury that she should be held to the standard of care of
    persons of similar age, capacity, and experience. 
    Id. Therefore, any
    rule regarding the age when a child may be held liable for
    negligence, or any rule regarding a presumption of either incapacity
    or capacity for negligence, was not relevant to the outcome of the
    case.
    ¶10 We specifically held that the Nelson court’s articulation of
    the Illinois rule was dictum and declined to follow it. In Mann v.
    Fairbourn, this court had to decide whether a five-and-a-half-year-old
    boy could be contributorily negligent in an accident that caused his
    death. 
    366 P.2d 603
    , 604, 606 (Utah 1961). We acknowledged our
    prior statement in Nelson that children under seven may not be
    negligent, but reasoned that “the statement was mere dictum
    inasmuch as the plaintiffs in that case were 16 and 20 years at age”
    and that “[s]uch a rule of law has not been observed by this court in
    other cases.” 
    Id. at 606.
    The Mann court held that the capacity for
    negligence of the five-year-old plaintiff was a factual inquiry to be
    resolved by a jury. 
    Id. In subsequent
    cases we continued to ignore
    the Nelson dictum and held that a jury should decide whether a six-
    and-a-half year old and a child just under six had the capacity to be
    negligent. Donohue v. Rolando, 
    400 P.2d 12
    , 13–14 (Utah 1965); Rivas v.
    Pac. Fin. Co., 
    397 P.2d 990
    , 991–92 (Utah 1964).
    ¶11 Despite this court’s refusal to apply the Illinois rule,
    however, we later used at least a portion of that rule. In Kilpack v.
    Wignall, we had to determine as a matter of law whether a seven
    year old had the capacity to be negligent. 
    604 P.2d 462
    , 463, 465–66
    (Utah 1979). The Kilpack court ignored our caselaw that either
    explicitly rejected or disregarded the Nelson dictum and quoted the
    Nelson opinion’s articulation of the Illinois rule. 
    Id. at 466.
    Because
    the child plaintiff in Kilpack was seven, this court then applied a
    presumption that he was incapable of contributory negligence. 
    Id. We held
    that because no evidence was presented to rebut this
    presumption of incapacity, the seven-year-old plaintiff was not
    negligent as a matter of law. 
    Id. ¶12 The
    holding of the Kilpack opinion, however, does not
    control in this case. In Kilpack, we applied the Illinois rule’s
    rebuttable presumption that children between the ages of seven and
    fourteen are incapable of negligence. We had no occasion to apply
    the rule’s conclusive presumption that children under seven are not
    liable for negligence. Indeed, when this court has been presented
    4
    Cite as: 
    2016 UT 14
                             Opinion of the Court
    with claims that five and six year olds have been negligent, we have
    held that the child’s capacity for negligence was a jury question.
    
    Donohue, 400 P.2d at 13
    –14 (six-and-a-half-year-old child); 
    Rivas, 397 P.2d at 991
    –92 (child just under six); 
    Mann, 366 P.2d at 604
    , 606 (five-
    and-a-half-year-old child).
    ¶13 We therefore reject the defendant’s assertion that Utah has
    recognized a conclusive presumption that children under seven are
    incapable of negligence. 2 Statements we have made to this effect are
    dicta, and this court has explicitly refused to follow this rule when
    the issue has been squarely presented. 
    Mann, 366 P.2d at 606
    .
    II. THE RESTATEMENT RULE
    ¶14 Although this court has never held that children under
    seven may not be held liable for negligence, we have recognized that
    there is an age at which a child is “so young and immature as to
    require the court to judicially know that he is not responsible for his
    act.” Donohue v. Rolando, 
    400 P.2d 12
    , 14 (Utah 1965). But we have not
    yet explicitly held what the cutoff age for negligence liability is. This
    court has previously decided this question on an ad hoc basis. An
    examination of our caselaw, though, reveals a dividing line between
    children under the age of five and children aged five and above.
    ¶15 As noted above, when we have examined the capacity of
    five and six year olds to be negligent we have held that it was a jury
    question unless reasonable minds could not differ on the issue.
    
    Donohue, 400 P.2d at 13
    –14; Rivas v. Pac. Fin. Co., 
    397 P.2d 990
    , 991–92
    (Utah 1964); Mann v. Fairbourn, 
    366 P.2d 603
    , 604, 606 (Utah 1961).
    We have found only one opinion in which this court has assessed the
    capacity of a child under five to be negligent. In Herald v. Smith, a
    motorist struck a four-year-and-ten-month-old girl while she was
    crossing the street. 
    190 P. 932
    , 933 (Utah 1920). The girl sued the
    motorist for negligence. 
    Id. at 932.
    After the trial, the district court
    directed a defense verdict after apparently concluding that the
    evidence could only support a finding that the child’s negligence
    2 We do not resolve the question of whether Utah recognizes a
    rebuttable presumption that children under the age of fourteen are
    incapable of negligence. Our caselaw is in conflict on this point. The
    Kilpack court applied this presumption in a case involving a seven
    year old. But that case appears to contradict earlier cases addressing
    a child’s capacity for negligence that rejected the Illinois rule and
    resolved this issue without referring to a judicially created
    presumption of either incapacity or capacity for negligence. See
    
    Donohue, 400 P.2d at 13
    –14; 
    Rivas, 397 P.2d at 991
    –92; 
    Mann, 366 P.2d at 606
    .
    5
    NIELSEN v. BELL
    Opinion of the Court
    had contributed to the accident. 
    Id. at 933.
    On appeal, we held that
    the child could not be charged with contributory negligence: “A
    child of that age cannot, as a matter of law, be held to have
    appreciated the danger and is not presumed to conduct herself as an
    adult person would under similar circumstances.” 
    Id. ¶16 Granted,
    the procedural posture of Herald makes it a less
    than ideal signpost for determining the minimum age for negligence
    liability under Utah’s common law. The Herald court reversed the
    trial court’s legal conclusion that the child plaintiff had been
    negligent. Notably, we were not affirming a lower court’s legal
    determination that a child had not been negligent. Herald indicates,
    however, that this court’s conclusion that the four-year-old plaintiff
    was not capable of negligence was arrived at “as a matter of law.” 
    Id. In line
    with this legal determination, Herald further held that the
    resolution of a factual dispute at trial as to whether the motorist
    sounded his horn before the accident would not affect its conclusion
    that the child did not have the capacity to be negligent, reasoning
    that an “ordinary child of that age could neither appreciate nor
    understand the object sought or the reasons for giving such
    warning.” 
    Id. at 934.
    We therefore held that upon remand, the child
    plaintiff was entitled to submit to a jury the question of whether the
    motorist had negligently caused the accident, further indicating that
    the Herald opinion had resolved the contributory negligence issue in
    favor of the child plaintiff as a matter of law. 
    Id. ¶17 The
    Herald court’s holding that a girl two months shy of
    her fifth birthday could not be negligent marks a dividing line with
    subsequent cases holding that five year olds could have the capacity
    to be negligent. See 
    Rivas, 397 P.2d at 991
    –92; 
    Mann, 366 P.2d at 604
    ,
    606. This division matches the line drawn by the Restatement (Third)
    of Torts, which states: “A child less than five years of age is
    incapable of negligence.” RESTATEMENT (THIRD) OF TORTS: PHYS. &
    EMOT. HARM § 10(b) (AM. LAW INST. 2010). The restatement rule is
    consistent with the rule adopted by the majority of states, which
    holds that children under the age of at least five (several states have
    a higher age limit) may not be held liable for negligence. 
    Id. § 10
    reporters’ note, cmt. d. The restatement authors note that “only in a
    tiny handful of states are there actual cases that have permitted
    findings of negligence in the conduct of children who are less than
    five.” 
    Id. ¶18 A
    number of policy considerations support the
    restatement rule. Children under the age of five have a limited
    capacity to appreciate how their actions can cause harm to
    themselves or others and have an inadequate internal ability to
    6
    Cite as: 
    2016 UT 14
                            Opinion of the Court
    control impulses that may lead to injuries. See 
    id. § 10
    cmt. d. Absent
    an adequate ability to foresee consequences or control their behavior,
    “the possibility is slight that the conduct of a child under five is
    either deserving of moral criticism or is capable of being deterred by
    the application of tort rules.” 
    Id. Moreover, assessing
    a young child’s
    capacity for negligence by placing the child on the witness stand to
    answer questions about her individual understanding of cause and
    effect, foreseeability, and capacity for impulse control is problematic
    to say the least. See 
    id. This is
    especially true where the trial
    examination would likely occur years after the incident when the
    child has matured, making it difficult for the child to reclaim her
    earlier state of mind. Finally, the restatement rule recognizes that
    there is an age below which it is unseemly to subject a child to the
    judicial process or to adjudicate a child’s liability for negligence.
    ¶19 Of course, categorical rules are, by their nature, imperfect.
    Children develop at different rates, and some four year olds are
    undoubtedly more mature than some five year olds. Despite the
    inherent drawbacks of age-based rulemaking, however, we must
    engage in this line-drawing process to some extent. Legislatures
    have done so by setting the age at which individuals can work,
    drive, marry, vote, serve in the military, smoke, and drink alcohol, as
    well as establishing the age of consent. Courts also make hard, age-
    based rules. The Supreme Court has determined that the
    Constitution prohibits the execution of an “adolescent” who
    commits murder just days before his eighteenth birthday, but
    permits the death penalty for an “adult” who commits the same
    crime just days after turning eighteen. Roper v. Simmons, 
    543 U.S. 551
    ,
    578 (2005); see also 
    id. at 574
    (rejecting objections to drawing a hard
    line at eighteen). This court has also created age-based rules as part
    of the common law—finding that parent’s waiver of a minor’s
    prospective claim for negligence is unenforceable, for example.
    Hawkins ex rel. Hawkins v. Peart, 
    2001 UT 94
    , ¶ 13, 
    37 P.3d 1062
    . And
    although statutes now establish the age of majority, determining the
    age when individuals assume independent legal rights, such as the
    capacity to contract, was a common law function. 42 AM. JUR. 2D
    Infants § 4 (2010); RESTATEMENT (SECOND) OF CONTRACTS § 14 cmt. a
    (AM. LAW INST. 1981).
    ¶20 In each of these instances the advantages of uniformity,
    consistency, and efficiency justify a bright-line rule, despite its
    imperfections. Determining the appropriate age at which each of
    these rules should be applied on an individualized, case-by-case
    basis—e.g., conducting a review process to determine when every
    person is mature enough to vote or consent to sexual relations—
    would be so inefficient and create such uncertainty as to be
    7
    NIELSEN v. BELL
    Opinion of the Court
    unworkable. Rejecting definitive age-based rulemaking also unduly
    impairs policy making concerning the appropriate ages for certain
    activities.
    ¶21 We conclude that the instances where it would be
    appropriate to hold a child under the age of five liable for negligence
    would be rare enough that the social costs of conducting an
    individualized inquiry are not justified. Litigants are entitled to some
    amount of certainty and consistency. And this court has the duty to
    consider the propriety of subjecting children of tender years to tort
    liability, or, when they are plaintiffs, denying them recovery for the
    negligence of others.
    ¶22 We therefore adopt the restatement rule that children
    under the age of five may not be held liable for negligence. The
    question of whether a child five or over is capable of negligence is
    reserved for the fact-finder, unless a court determines that no
    reasonable jury could disagree on the issue. Such a rule conforms
    with our precedents and promotes important public policies.
    CONCLUSION
    ¶23 We reverse the district court’s order denying summary
    judgment in favor of the four-year-old defendant. We remand with
    instructions to grant summary judgment.
    8
    Cite as: 
    2016 UT 14
                           JUSTICE LEE, dissenting
    ASSOCIATE CHIEF JUSTICE LEE, dissenting:
    ¶24 The court today adopts a categorical rule exempting
    children under the age of five from a finding of negligence in tort. It
    bases that conclusion on both legal authority and its own
    assessments of cognitive psychology. I agree with some of the court’s
    premises. I accept the need for a categorical age cutoff at some point.
    And I have no doubt that many children under the age of five are
    incapable of negligence in some activities. But I respectfully dissent
    from the court’s adoption of a categorical cutoff at age five because I
    disagree with the conclusion that “the instances where it would be
    appropriate to hold a child under the age of five liable for
    negligence” are “rare enough that the social costs of conducting an
    individualized inquiry” into a child defendant’s mental capacity for
    negligence “are not justified.” Supra ¶ 21.
    ¶25 This is not a question for disposition “as a matter of law”
    by reference to an aging body of caselaw. It is, at bottom, a question
    of social science. The relevant field of social science (cognitive
    psychology), moreover, is one that has seen significant advances in
    recent years. For that reason it seems perilous to defer too quickly to
    the armchair assessments of a child’s analytical capacity made by
    judges in decades past.
    ¶26 I would take a fresh look at the age at which a child may
    properly be charged with negligence. I would do so based on a
    careful assessment of the state of our current understanding of the
    field of cognitive psychology. Recent advances in that field undercut
    the premises of the standard endorsed by the majority. Cognitive
    psychologists do not view all children aged five or older as fully
    capable of the kind of thinking necessary to charge them with
    negligence; nor do they see all children four or younger as
    categorically incapable of that kind of thinking. Instead they
    generally agree that children begin to develop cognitive skills like
    planning and impulse control at about age three, and continue
    developing those skills as they grow older. And although experts in
    this field have identified developmental and environmental factors
    that explain why different children develop at different rates, they
    also generally agree that most children acquire the ability to engage
    in planning and impulse control by the age of eight.
    ¶27 With this in mind, I would reject the age five cutoff
    adopted by this court and others. I would embrace instead a
    framework that would deem all children under the age of three
    9
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    incapable of negligence and also presume (subject to rebuttal by
    expert evidence) that those who are aged three to seven lack that
    capacity.
    ¶28 As noted below, I find nothing in the caselaw in this field
    that would sustain the cutoff endorsed by the court. The cases
    adopting a five-year (or seven-year) cutoff for negligence in other
    jurisdictions are based mostly on armchair assessments of cognitive
    psychology advanced by judges. To the extent the cases cite any
    literature from any relevant fields of expertise, moreover, the
    citations are to outdated science. And despite the majority’s
    insistence to the contrary, our court has never held “‘as a matter of
    law’” that a four-year-old is “not capable of negligence.” Supra ¶ 16
    (quoting Herald v. Smith, 
    190 P. 932
    , 933 (Utah 1920)).
    ¶29 Even if the cited case could be understood to have
    embraced such a holding, I would not be inclined to defer to it on
    this appeal. The Herald case is almost a century old. And our
    understanding of cognitive psychology has advanced markedly in
    the many decades since that decision. A reconsideration of the
    question of where to draw the line on an age cutoff for negligence is
    past due. I would do so here. And I would adopt a framework that
    would deem the four-year-old defendant in this case presumptively
    incapable of negligence, subject to rebuttal on remand by expert
    testimony to be presented by the plaintiffs.
    I
    ¶30 The majority’s approach finds support in judicial decisions
    of our sister states. But I cannot agree that this court has held that a
    child under the age of five is incapable of negligence as a matter of
    law. See supra ¶ 16 (discussing Herald v. Smith, 
    190 P. 932
    (1920)).
    And in any event I would not defer to the outdated, unsupported
    analysis of this important question in the decades-old caselaw in this
    or other jurisdictions.
    A
    ¶31 The majority correctly concludes that this court has never
    expressly adopted “a conclusive presumption that children under
    seven are incapable of negligence.” Supra ¶ 13. And it rightly
    concedes that our past cases “have not yet explicitly held what the
    cutoff age for negligence liability is,” but have instead “decided this
    question on an ad hoc basis.” Supra ¶ 14. Yet the court also asserts
    that our cases have implicitly adopted “a dividing line between
    children under the age of five and children aged five and above.” 
    Id. 10 Cite
    as: 
    2016 UT 14
                            JUSTICE LEE, dissenting
    Specifically, the majority views our decision in Herald v. Smith as
    concluding “‘as a matter of law’” that a four-year-old is “not capable
    of negligence.” Supra ¶ 16 (quoting 
    Herald, 190 P. at 933
    ). And it
    insists that Herald “held that upon remand, the child plaintiff” in that
    case “was entitled to submit to a jury the question of whether the
    motorist had negligently caused the accident, further indicating that
    the Herald opinion had resolved” the question of the child’s
    contributory negligence “in favor of the child plaintiff as a matter of
    law.” 
    Id. ¶32 I
    read Herald differently. The Herald court’s analysis of the
    child plaintiff’s capacity for contributory negligence had nothing to
    do with establishing a categorical age cutoff as a matter of law. In
    fact the court espoused the opposite view—that “[t]he degree of care
    required of a child must be graduated to its age, capacity, and
    experience, and must be measured by what might ordinarily be
    expected from a child of like age, capacity, and experience under
    similar 
    conditions.” 190 P. at 933-34
    (quoting Gesas v. O.S.L. R.R., 
    93 P. 274
    , 279 (Utah 1907)). To the extent Herald was endorsing a
    generally applicable rule, then, it was one counter to the age cutoff
    adopted by the court today—a rule under which the four-year-old
    plaintiff could not “be charged with contributory negligence” “[i]f it
    acted as might reasonably be expected of such a child” of her age. 
    Id. at 934
    (citation omitted).
    ¶33 The Herald court’s assessment of the child plaintiff’s
    contributory negligence was not based on a categorical analysis of
    the cognitive capacity of young children. It was based purely on the
    facts and circumstances of that case.
    ¶34 The Herald court’s holding was a rejection of the theory of
    contributory negligence advanced by the defendant in the case. That
    theory was a stretch—that the defendant driver of a car “had a right
    to assume” that the child pedestrian “would not move forward”
    “when he blew the horn” on his car, and that the child plaintiff was
    therefore negligent because she disregarded the horn. 
    Id. at 933.
    In
    rejecting that theory, the Herald court did not adopt a blanket rule of
    immunity. It concluded only that “[t]he defendant’s duty to the
    plaintiff cannot be measured by what he might reasonably have
    expected to be the conduct of an adult person in such
    circumstances.” 
    Id. ¶35 In
    rejecting the defendant’s theory of contributory
    negligence, moreover, the court was not assessing the cognitive
    11
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    capacity of children in general; it was rejecting the defendant’s
    theory of contributory negligence under the facts of that case. The
    court’s analysis was as follows:
    Under the circumstances and facts of this case it is
    immaterial whether such alarm [the defendant’s horn]
    was given or not. The plaintiff was a little girl not yet five
    years of age. The ordinary child of that age could neither
    appreciate nor understand the object sought or the
    reasons for giving such warning. If it made any
    impression at all upon her mind, she probably accepted it
    as for her amusement rather than anything else; in other
    words, we regard the fact as to whether defendant
    sounded the horn as immaterial. It would in no way
    relieve the defendant of the charge of negligence, if he
    was negligent in going forward after he observed the
    child crossing the street, nor would it charge the plaintiff
    with contributory negligence.
    
    Id. at 934.
        ¶36 I find no basis in the above for the conclusion that the
    Herald court in any way established a “signpost for determining the
    minimum age for negligence liability under Utah’s common law.”
    Supra ¶ 16. Its only “signpost” was the proposition that a child is
    held to a standard “‘graduated to its age, capacity, and experience,”
    to be “measured by what might ordinarily be expected from a child
    of like age, capacity, and experience under similar conditions.”
    
    Herald, 190 P. at 933
    -34 (citation omitted). And its holding that the
    child plaintiff in that case was not negligent “as a matter of law” was
    based on the court’s analysis of the facts of that case, not an
    assessment of the cognitive capacity of four-year-olds in general.
    ¶37 In all events the Herald case is almost a century old. Even if
    it could be read to establish a hard age cutoff on the basis of the
    court’s understanding of cognitive psychology, that question would
    surely be ripe for reconsideration in light of advances in our
    understanding in this field in recent decades.
    B
    ¶38 As the majority indicates, the Restatement (Third) of Torts
    concludes that “[a] child less than five years of age is incapable of
    negligence.” Supra ¶ 17 (quoting RESTATEMENT (THIRD) OF TORTS:
    PHYS. & EMOT. HARM § 10(b) (AM. LAW INST. 2010)). And a “majority
    of states” has embraced an age cutoff along these lines. 
    Id. Some set
                                       12
    Cite as: 
    2016 UT 14
                             JUSTICE LEE, dissenting
    the cutoff at five, and others at age seven. But most state courts agree
    that children in this age range are categorically incapable of
    negligence. Only a “handful” deem children under the age of five
    capable of the kind of thinking that would render them eligible for a
    finding of negligence. Supra ¶ 17 (quoting RESTATEMENT (THIRD) OF
    TORTS: PHYS. & EMOT. HARM § 10 reporters’ note, cmt. d). 1
    ¶39 In my view, however, the number of these decisions far
    exceeds the depth of their analysis. The widespread notion of a
    young child’s incapacity for negligence is rooted more in judicial
    tradition than cognitive science. Many courts have alluded to what
    they see as “common knowledge of the mental development of . . .
    children.” 2 They view the cognitive capacity of a child as a matter of
    judicial notice, asserting (without citation to expert authority or
    literature) that children under the age of five (or sometimes seven)
    have not “developed the mental capacity for foreseeing the
    possibilities of their inadvertent conduct which would rationally
    support a finding” of negligence. 3
    ¶40 Occasionally our judges have cloaked these conclusions in
    the legal-sounding garb of Latin phrases—deeming young children
    “non sui juris” (not their own master), 4 or described by the maxim
    “quaedam personœ sui juris sunt, quaedam olicuo juri subjectœ” (some
    1 But see Beggs v. Wilson, 
    272 A.2d 713
    , 714 (Del. 1970) (rejecting an
    age cutoff because “[i]n growing up, each child is physically unique,
    and the law should recognize this uniqueness”); Lester v. Sayles, 
    850 S.W.2d 858
    , 867 (Mo. 1993) (concluding that “[p]ositing a
    predetermined age at which negligence or fault can occur has little
    basis in reason or logic”).
    2  Christian v. Goodwin, 
    10 Cal. Rptr. 507
    , 509 (Cal. Ct. App. 1961)
    (citation omitted).
    3 
    Id. (citation omitted)
    (holding that a child under the age of five
    is incapable of negligence); see also Cox v. Hugo, 
    329 P.2d 467
    , 469
    (Wash.1958) (asserting, without reliance on any expert or scientific
    authority, that a child under the age of six “is a creature of impulse
    and impetuosity” and “has no habits of deliberation and
    forethought” (citation omitted)); Swindell v. Hellkamp, 
    242 So. 2d 708
    ,
    710 (Fla. 1970) (opining that children under six are “conclusively
    presumed to be incapable of committing contributory negligence”).
    4   Graham v. Rolandson, 
    435 P.2d 263
    , 278 (Mont. 1967).
    13
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    persons are independent, and some are subject to another). 5 But
    legal-sounding words cannot turn this question into a matter for
    legal analysis; the premise of the age cutoff for young children is a
    scientific question of cognitive psychology, not a proper subject of
    legal analysis or judicial notice.
    ¶41 Still, courts have long resisted challenges to the judicial
    prerogative of fixing a lower bound on a child’s capacity for
    negligence. Some acknowledge “the arbitrary nature” of a hard
    cutoff at age five or seven, yet fall back on the notion that such cutoff
    “has been the law” for many decades. 6 Another went so far as to
    “agree . . . that the arbitrariness of the rule supports its
    abandonment,” while “reluctantly conclud[ing] that the principle of
    stare decisis require[d] th[e] court” to retain it. Appelhans v. McFall,
    
    757 N.E.2d 987
    , 991 (Ill. Ct. App. 2001).
    ¶42 To their credit, some courts have looked to the cognitive
    psychology literature in fixing an age cutoff for negligence. To the
    extent they have done so, they have relied principally on the
    research and publications of psychologist Jean Piaget. 7 Piaget
    grouped children into four rigid developmental categories; he placed
    children under seven in a category of children deemed “incapable of
    understanding the physical world” and “unable to foresee the
    consequences of action.” 8 Piaget’s analysis was respected in its day.9
    5Mangum v. Brooklyn City R.R. Co., 
    38 N.Y. 455
    , 459 (N.Y. 1868)
    (Mason, J.).
    6   
    Graham, 435 P.2d at 267
    .
    7 See generally BÄRBEL INHELDER & JEAN PIAGET, THE GROWTH OF
    LOGICAL THINKING FROM CHILDHOOD TO ADOLESCENCE (1958); Lisa
    Perrochet & Ugo Colella, What A Difference A Day Makes: Age
    Presumptions, Child Psychology, and the Standard of Care Required of
    Children, 24 PAC. L.J. 1323, 1351 (1993) (“The view among courts that
    young children are incapable of caring for their own well-being
    probably emerged from the influence of the developmental portrait
    painted by Piaget.”); see also Tyler v. Weed, 
    280 N.W. 827
    , 832 (Mich.
    1938) (relying on the research of Piaget and others, which “brought a
    new light upon the mysterious mind of the child”).
    8   Perrochet & Colella, supra note 7, at 1335–36.
    9Perrochet & Colella, supra note 7, at 1334 (noting that “[p]rior to
    the 1970s, the work of Swiss Psychologist Jean Piaget was the
    dominant paradigm among developmental psychologists”).
    14
    Cite as: 
    2016 UT 14
                             JUSTICE LEE, dissenting
    But cognitive psychology, not surprisingly, has seen substantial
    developments in the past few decades. And for decades Piaget’s
    approach has been viewed as rooted in outdated notions of rigid,
    universal phases of child development. 10
    ¶43 For these reasons I would not base a decision in this case
    on existing caselaw. However widely accepted, the notion of a hard
    age cutoff at age five finds no reasoned basis in the caselaw. I would
    therefore take a fresh look at the question of a child’s cognitive
    capacity for negligence by examining the relevant literature in the
    field of cognitive psychology.
    II
    ¶44 The majority seeks to root its age cutoff in assertions about
    cognitive psychology. It claims that “[c]hildren under the age of five
    have a limited capacity to appreciate how their actions can cause
    harm to themselves or others and have an inadequate internal ability
    to control impulses that may lead to injuries.” Supra ¶ 18. And it
    insists that “[a]bsent an adequate ability to foresee consequences or
    control their behavior, ‘the possibility is slight that the conduct of a
    child under five is either deserving of moral criticism or is capable of
    being deterred by the application of tort rules.’” 
    Id. (quoting RESTATEMENT
    (THIRD) OF TORTS: PHYS. & EMOT. HARM § 10 cmt. d
    (assuming, without citing support in social science literature, that
    “by the time children reach the age of five, moral rules are becoming
    internalized, rather than being controlled by external sources”)). 11
    10  
    Id. at 1336
    (explaining that “Piaget’s views have been
    challenged by cognitive psychologists”).
    11    The Restatement asserts that “modern developmental
    psychology tends to divide the years before adulthood into several
    phases”—birth to two, two to six, six to eleven, and eleven to
    eighteen. 
    Id. § 10
    cmt. b. But there is very little that is “modern”
    about the Restatement’s notions of cognitive psychology. Its
    “phases” are based on the outmoded thinking of Piaget, who
    adopted similar age cutoffs. See Perrochet & Colella, supra note 7, at
    1335–36. So the Restatement seems suspect for reasons identified
    herein. See infra ¶¶ 46–50. And it also seems problematic for another
    reason: It adopts a cutoff at an age (five) that falls in the middle of one
    of its listed phases of development. RESTATEMENT (THIRD) OF TORTS:
    PHYS. & EMOT. HARM § 10 cmt. b.
    15
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    ¶45 I do not doubt that the majority’s premises hold for many
    children under the age of five in some circumstances. But I cannot
    agree that most all such children are incapable of the kind of
    thinking required to sustain a finding of negligence—or that so
    many of them lack that capacity that we should endorse a hard five-
    year cutoff as a matter of law.
    ¶46 In recent decades cognitive psychologists have repudiated
    the notion that children become capable of the kind of thinking
    necessary to sustain a finding of negligence only at the age of five.
    Experts in this field have come to understand that “children vary
    widely in their mental development and do not move magically
    from one developmental stage to another simply because they have
    celebrated a birthday.” 12 Importantly, cognitive psychologists have
    identified an age younger than five at which some young children
    begin to acquire the mental attributes necessary to be held morally
    culpable and to be deterred from such behavior. They generally
    agree that some children acquire those attributes as early as age
    three. 13 And they have identified factors that affect the rate of
    development of such attributes in individual children—such as the
    physical development of the brain and the social environment that
    shapes cognitive human responses. 14
    ¶47 To merit attribution of fault, children must be able to
    foresee the consequences of their actions and avoid them by
    controlling their impulses. This involves the ability to plan—to
    “understand and anticipate the causal connection between actions
    and outcomes.” 15 In order to plan, children “must (1) have the ability
    to understand cause and effect relationships in the physical world;
    12   Perrochet & Colella, supra note 7, at 1337.
    13  See, e.g., Rochel Gellman, Cognitive Development, in 2
    D.L. STEVENS’ HANDBOOK OF EXPERIMENTAL PSYCHOLOGY 533, 537540
    (3rd ed. 2002) (compiling studies showing increasing awareness of
    cognitive ability in children at age three or even earlier); John R. Best
    & Patricia H. Miller, A Developmental Perspective on Executive
    Function, 81 CHILD DEV. 1641, 1643-52 (2010) (discussing recent
    studies measuring inhibition in young children).
    14 Perrochet & Colella, supra note 7, at 134850; see also generally
    Tracey Fay-Stammbach et al., Parenting Influences on Executive
    Function in Early Childhood: A Review, 8 CHILD DEV. PERSP. 258 (2014).
    15   Perrochet & Colella, supra note 7, at 1339 (citations omitted).
    16
    Cite as: 
    2016 UT 14
                              JUSTICE LEE, dissenting
    (2) believe that actions produce outcomes in the physical world; and
    (3) have the ability to exercise self-regulation.” 16 Young children
    vary widely in their capacity for this kind of thinking because they
    develop cognitive abilities at different rates.17
    ¶48 Core executive functions, including working memory,
    inhibitory control, and cognitive flexibility, are key components in
    brain development during preschool years. 18 “Executive
    functions . . . make possible [skills such as] mentally playing with
    ideas; taking the time to think before acting; meeting novel,
    unanticipated challenges; resisting temptations; and staying
    focused.” 19 Individual components of executive function emerge
    before the age of three. 20 Primitive signs of working memory and
    inhibition can be observed in infancy, and experts have identified
    substantial variability in the development of this attribute among
    young children. 21 From age three and on, children typically undergo
    the most significant period of executive function development.22
    ¶49 Of particular relevance to a child’s capability for
    negligence is the development of inhibition: “[I]nhibition is a
    necessary precursor to the forward-planning, self-regulating, goal-
    16   
    Id. 17 Perrochet
    & Colella, supra note 7, at 1337 (“[C]hildren vary
    widely in their mental development and do not move magically
    from one developmental stage to another simply because they have
    celebrated a birthday.”).
    18 See generally Adele Diamond, Executive Functions, 64 ANN. REV.
    PSYCHOL. 135 (2013); Nancy Garon et al., Executive Function in
    Preschoolers: A Review Using an Integrative Framework, 134 PSYCHOL.
    BULL. 31 (2008).
    19   Diamond, supra note 18, at 135.
    20   Garon at al., supra note 18.
    21 See generally Peter J. Anderson & Natalie Reidy, Assessing
    Executive Functions in Preschoolers, 22 NEUROPSYCHOL. REV. 345, 355
    (2012).
    22 See, e.g., HARV. UNIV. CTR. on the Developing Child, In Brief:
    Executive Function (2012), https://perma.cc/G3E8-G782 (noting that
    “executive function skills . . . begin to develop shortly after birth,
    with ages 3 to 5 a window of opportunity for dramatic growth in
    these skills”).
    17
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    directed, higher processes that integrated executive functions
    engender.” 23 Studies show that there is rapid change in developing
    inhibitory control between the ages of three and five. 24 Most children
    are able to demonstrate inhibitory control by the age of five, 25 and a
    child’s capacity for inhibition improves markedly through the age of
    seven. 26 So the ages identified in the caselaw are not entirely
    arbitrary. But the cognitive psychology literature does not support
    the notion that most all children under the age of five are incapable
    of inhibition. At least some children at younger ages have that
    capacity.
    ¶50 A child aged three or four may well possess sufficient
    capacity for executive functions like planning and inhibition to be
    held responsible for at least some kinds of basic life activities. And
    for me that is a sufficient ground for rejecting the five-year cutoff
    advanced by the majority. Our tort law, after all, is not just aimed at
    protecting the interests of defendants; it must also account for the
    interest of providing compensation to injured plaintiffs.
    ¶51 With the above in mind, I would adopt a tiered framework
    for assessing the negligence of children: (a) children under the age of
    three would be categorically immune from a finding of negligence;
    (b) children between the ages of three and seven would be subject to
    a presumption of incapacity for negligence—a presumption that
    could be rebutted by expert testimony establishing the individual
    child’s capacity for the kind of executive functions (planning and
    inhibition) necessary to hold them responsible for the actions in
    question; and (c) children aged eight or older would be held to a
    standard of a reasonable child of like age, capacity, and experience
    under similar conditions. This framework seems to me to follow
    from the premises of cognitive psychology outlined above.
    23  Jacqui A. Macdonald et al., Age-Related Differences in
    Inhibitory Control in the Early School Years, 20 CHILD
    NEUROPSYCHOL. 509, 510 (2014).
    24 HARV. UNIV. CTR., supra note 22; see also generally Philip David
    Zelazo et al., The Development of Executive Function in Early Childhood,
    68(3)in Monographs of the SOC’Y for Res. in Child Dev. 68(3) (2003).
    25 Macdonald et al., supra note 23, at 509; see also Anderson &
    Reidy, supra note 21; Livia Freier et al., Preschool Children’s Control of
    Action Outcomes, DEV. SCI., Oct. 28 2015, at 13.
    26   Macdonald et al., supra note 23, at 509.
    18
    Cite as: 
    2016 UT 14
                            JUSTICE LEE, dissenting
    ¶52 This framework would lead to an affirmance of the district
    court’s decision in this case. Because the child defendant in this case
    was four years old, he should be entitled to a presumption that he is
    incapable of negligence; but the plaintiffs should also be entitled to
    present evidence aimed at rebutting that presumption. I would
    affirm and remand to give the plaintiffs a chance to present evidence
    of the defendant’s capacity for the kind of thinking necessary to hold
    him responsible for the injury he caused by throwing a toy at his
    babysitter.
    ¶53 That act was a fairly simple one. At least some four-year-
    olds seem capable of anticipating the consequence of the basic act of
    throwing something at another person, and of controlling their
    impulse to do so. In any event I would leave such questions for case-
    by-case disposition by the court on the basis of expert testimony
    instead of foreclosing the possibility as a matter of law.
    ¶54 I acknowledge the complication introduced by the likely
    gap between the date of the tort and the time when the child’s
    cognitive capacity is assessed by the court. See supra ¶ 18. But the
    majority overstates the problem. Under my framework the child’s
    capacity would not be judged on the basis of trial testimony from the
    child as to “her individual understanding of cause and effect,
    foreseeability, and capacity for impulse control.” 
    Id. It would
    be
    judged on the basis of expert testimony. And that testimony could
    often be judged as a matter of law on pretrial motions.
    ¶55 Expert analysis of a child’s capacity for negligence would
    be complicated by the noted time gap between the tort and the
    decision by the trial judge. But the complication is hardly intractable.
    A cognitive psychologist could inquire into the child’s history and
    experience and offer an opinion on the child’s likely ability to engage
    in the sort of planning and inhibition necessary to be responsible at
    the time of the activity in question. And ultimately the presumption
    would go against allowing a suit to go forward. So if the time
    problem identified by the majority becomes too difficult, it will count
    against a determination of a child party’s capacity for negligence.
    ¶56 The timing problem, moreover, is hardly evaded by the
    majority’s approach. The problem remains for the children aged five
    or older left open to a finding of negligence by the court. So the
    question presented in this case should not be resolved on the basis of
    the timing problem identified by the majority. It must be resolved by
    our careful assessment of the age below which most all children are
    19
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    incapable of the kind of thinking required to sustain a determination
    of negligence.
    ¶57 The answer to that question is a difficult one. Our current
    understanding of cognitive psychology suggests that the answer is
    age three. It also indicates that many children between the age of
    three and seven are similarly incapable. I would adopt a legal
    framework that reflects this understanding.
    III
    ¶58 Few young children are likely to engage in the kind of
    risky activity that will often result in significant harm to others. And
    when they do, many would-be claimants are likely to cut them some
    slack for one reason or another—in recognition, for example, of their
    minimal capacity for culpability, or their limited resources (absent
    insurance) for payment of damages. In the rare case when a young
    child is brought to bar, however, our law should reflect the current
    understanding of cognitive psychology. The framework that I
    propose would accomplish that objective.
    ¶59 It would not, however, open any floodgates for child tort
    litigation. My framework would impose a presumption that sweeps
    more broadly than the majority’s age cutoff. It would hold children
    aged three through seven presumptively incapable of negligence,
    subject to rebuttal by expert testimony.
    ¶60 For many children and many activities, this presumption
    would be difficult to rebut. But at least some young children are
    likely to be shown capable of understanding the likely consequences
    of the kind of basic activity at issue in this case—of throwing a toy at
    another person’s face—and of controlling their impulses in such acts.
    I would not foreclose the possibility of such a determination as a
    matter of law.
    ¶61 I dissent from the majority’s adoption of a cutoff at age
    five because I find no basis for it in the caselaw or in the relevant
    field of science. I also find the majority’s focus short-sighted. Its
    analysis of the relevant policy considerations is focused exclusively
    on the question of a defendant’s capacity for moral missteps. Yet tort
    suits are a two-way street. They are aimed not only at deterrence of
    unreasonable conduct but also at compensation for the injuries that
    are caused thereby. I would also consider the claimant’s interest in
    compensation before we decide to cut off an entire category of
    claims. And because at least some children between the ages of three
    and seven are capable of planning and impulse control, I would
    20
    Cite as: 
    2016 UT 14
                            JUSTICE LEE, dissenting
    leave the door open to the possibility of compensating a plaintiff
    who is both injured by a child defendant and who can prove by
    expert testimony that the child is capable of negligence.
    ¶62 The majority’s decision is also short-sighted in a second
    respect: It ignores the effect of its decision in cases initiated by child
    plaintiffs. If young children are mentally or morally incapable of
    negligence, they will not only be immune from suit as defendants;
    they will also be deemed incapable of fault when they initiate suit as
    plaintiffs. 27 That prospect raises the stakes for our decision today. I
    suspect that more children file suit as plaintiffs than are named in
    suits as defendants. If so, the predominant effect of today’s decision
    will not be to restrict liability in suits involving children but to
    expand it. If no young plaintiff will ever have any fault attributed to
    him in a negligence suit, the defendant in such a suit will be left with
    full responsibility in every case no matter how minimal his degree of
    actual relative fault.
    ¶63 Consider a (presumably common) case involving a child
    pedestrian plaintiff and a somewhat older driver defendant. The
    driver defendant will be deemed 100 percent at fault in 100 percent
    of the cases—even if the defendant is barely negligent and the
    plaintiff is borderline reckless. So a driver who exceeds the speed
    limit by one mile per-hour will be 100 percent at fault even in a case
    filed by a plaintiff who recklessly darted into the roadway in full
    view of an oncoming car. 28 So long as the plaintiff is under the age of
    five, he can never have any fault attributed to him under the
    standard adopted today.
    27 See RESTATEMENT (THIRD) OF TORTS: PHYS. & EMOT. HARM § 10
    cmt. e. (“The rules relating to children and negligence apply also to
    children and contributory negligence.”); Benallo v. Bare, 
    427 P.2d 323
    ,
    325 (Colo. 1967) (finding children under six incapable of contributory
    negligence); Swindell v. Hellkamp, 
    242 So. 2d 708
    , 710 (Fla. 1970)
    (holding that children under seven are “conclusively presumed to be
    incapable of committing contributory negligence”).
    28 
    Swindell, 242 So. 2d at 710
    (concluding that a nearly five- year-
    old girl who darted into traffic could not be held contributorily
    negligent); 
    Benallo, 427 P.2d at 325
    (finding that six-year-old who
    darted across the street could not be held contributorily negligent);
    Baker v. Alt, 
    132 N.W.2d 614
    , 620 (Mich. 1965) (holding that a six-
    year-old who rode his bike against traffic at an excessive speed could
    not be held contributorily negligent).
    21
    NIELSEN v. BELL
    JUSTICE LEE, dissenting
    ¶64 That will hold for any plaintiff so long as the defendant is
    at least five years old. Thus, the prospect of full fault for the barely
    negligent defendant would hold if the hypothetical involves not an
    adult driver of a vehicle but a five-year-old operator of a bicycle or a
    motorized scooter. The five-year-old is 100 percent at fault as a
    matter of law even if his conduct is only barely unreasonable and the
    pedestrian’s acts border on reckless.
    ¶65 I find these prospects troubling. And I see no legal or
    scientific basis for adopting the age five cutoff that will lead us down
    this path. I respectfully dissent.
    22