It's a line I've been trying to balance. I don't think outright bans are helpful. AI is going to be there in some shape or form in the future and we need to know how to use it to our advantage. Getting hooked onto it is a problem. I know I experience that myself.
My main barrier against this has been to talk with him regularly about this. Amplify the positives rather than warn about the negatives so that the first gets done more and the latter gets atrophied.
I like the way you put it. In particular it seems helpful to let kids make effort and delegate the secondary work to AI.
It makes no sense to do bans when everyone else will grow up with LLMs.