That's why I suggest starting with really small children, kids that will be 13 by 2032. Starting with teens is a non starter regardless of how it is attempted in my opinion. It was a very long time ago but I recall being a teen. I could not be locked out of anything. Starting with small children is much easier and when they prove that they are mature and responsible enough then the floodgates open.

You are advocating parenting kids. So many others seem to want "policy" to raise peoples kids for them. That is a fools errand. And personally, I could not care less what some bureaucrat thinks is alright for my children or any others. Simply not their decision to make.