Parents have the welfare of their child at heart like nobody else, including teachers, public officials, police officers, or others. Parents have the authority of love. Life is filled with opportunities to talk about God, about His creation, about His will, and about how we relate to Him. There's not a moment, nor an activity, nor an event that is not connected to God in some way, and wise parents help children understand Him, and love Him. There is no better foundation for life than love for God.
Children ultimately become responsible for their own actions.
That's what maturity and age are all about. But parents lay the foundation and give children something to build upon. Just because a child goes bad is no proof that a parent failed, but it is one question among many that deserves consideration. Today's parents need to know the power of involvement in their children's lives. It can't be turned over to TV sets, video games, computer terminals, nor to sports or even educational activities.