I'm completely in agreement that parents should be made responsible for the behaviour of their children, but that isn't very easy today. My brother, who lost his wife to cancer when his children were 10 - 16, did everything in his power to stop his youngest daughter going off the rails when she was fourteen, she complained to the social worker at school about the restrictions he was placing on her going out, and the end result was that she elected to go into 'care' where she was allowed to do as she wished.
This took place in a small town where he was able to see this child hanging around pubs, and before too long becoming pregnant, and not being able to so much as speak to her. Into the bargain he was charged a small fortune weekly for her upkeep