Possibly.
Minors are held to an adult standard when operating powerful machines, such as driving a car.
Minors are otherwise usually held to the standard of a minor of similar age, experience, and maturity, such as when they are riding a bicycle or when they are a pedestrian.
Minors under age six cannot be negligent as a matter of law.
Parents are not automatically responsible for the actions of their children, but may be liable for accidents caused by minors under legal doctrines such as negligent entrustment and the family car doctrine.