The answer is "true" because you have to have a legal adult in the car.
Contributory negligence is when the negligence is the plaintiff's full fault or part of there fault. Or simply they are injured because of their own negligence or they may have contributed to their injury.
A defense to a claim of negligence
-judging your friend
all the other actions can be helpful, judging them will just push them away to the point that they will not listent to you or even be your friend anymore.