2 lead by example. If parents do not pay attention to this influence when communicating with people around them, it is very unconvincing to ask their children to do something.
It is suggested that children gradually become thoughtful, responsible and attractive people. Naive and brave people will not go far in social life, even if they speculate for a while, they will soon degenerate.
If it is necessary to change abstinence, it should be supplemented by coercive measures.
In fact, the most effective way is to introduce really beneficial and useful knowledge to children and cultivate their correct outlook on life and values.