This might work in genaral for kids that are going off:
These kids in there eyes they are not doing anything wrong all they want is to be happy in life.
Every child at risk means i dont understand why we cant simply enjoy life?? why do i need all this rules for??? if the child does not recieve a very very clear answer which makes alot of sense to him he will always remain at risk no matter what approach you take with him. at the end of the day he wants to enjoy life and if yiddishkeit is not enjoyble then why practice yiddishkeit.
The job of anyone who wants to help another person to be erlich is simply to convince him why judiasm is an enjoyble way of life.
The mindset should be he is doing what he is doing simply because he wants to enjoy his day and does not understand what enjoyment really is.
The best way for a child to realize that yiddishkeit is actually a happy way of life is by seeing the parents enjoying yiddishkeit. Children thrive when they see their parents have a relationship to hashem in a very normal, practical and regular way.
It is best to discuss with children in early childhood that the world has a lot to offer and to be very specific according to age appropriate and then to explain in detail and in depth why it does not compare to judiasm for example to doing chesed or to enjoy a deep discussion in gamoro.