Every parent comes to the realization that they cannot play judge to every conflict between thier children-- punishing this one or that one.
Eventually, the parent punishes all conflict equally, a no-fault policy. Hence, motivation is given for all sides to 'get along'.
Government does the opposite, stealing our opportunity for growth in conflict management that doesnt resort to 'men with guns' at your door because you violated section B, subparagraph 4... or require a bunch of pre-emptive law designed to curtail any action that may lead to conflict.