> only parents can decide for their own children

Voters are collectively deciding for all of our children. And there are absolutely group dynamics that require cooperation. It’s why rich communities ban phones in classrooms while in poor communities, the one family that tries doing it alone is probably going to be less successful.

Again, I’m not saying you’re fundamentally wrong. Just that this debate has been had and the polling is massively in favor of bans for under-14 year olds and strongly in favor for under-18s. (And to the degree I’ve connected with electeds, the folks calling in and writing were almost 100% one way. The civically-engaged electorate is practically at consensus.)