This. ^
Thinking back to when I was a kid, getting grounded did nothing because I knew it would be over soon. However, when I busted the car and I had to pick up side jobs within walking distance because I couldn’t drive plus I had to save to fix the busted car really sent it home. If you make the mountain too tall to climb they may give up, but you have to make it large entrant the lesson gets driven home. Plus just remember all the crap people told at that age but went in one ear and out the other.