Fault
Comparative fault, and why it is argued so hard here
California uses pure comparative fault, so a pedestrian found partly responsible recovers a reduced amount rather than nothing. Because the injuries in these cases are severe and the values high, insurers invest heavily in building a percentage: that the pedestrian was distracted by a phone, wearing dark clothing, intoxicated, or stepped out suddenly.
Those arguments are answerable with evidence rather than assertion. Signal timing data, the driver’s speed from event data recorders and from the physical evidence, sightline analysis, street lighting records, and whether the driver was on a phone are the material that decides these cases, and most of it has to be obtained quickly.
Children are treated differently. A child is held only to the standard of care of a reasonable child of the same age and experience, and a very young child is generally incapable of negligence at all, which makes comparative fault arguments against them much weaker.