Yes. After all the alcohol limit of 21 is a massive success and leads to both people under 21 never drinking alcohol, and people over 21 being very responsible drinkers, enjoying one or two drinks in the evening instead of getting blackout drunk.
In light of these successes we should ban smart phones from under 16 year olds. Computers too, after all those can also be used to access AI tools. Anyone who says that adults taking the bare minimum of responsibility has anything to do with parenting instead of taking agency and responsibility from teenagers is just a small-government naysayer
I realize that users of this site might be inclined to think that non-perfect solutions are not acceptable. However, in the real world, all solutions are non-perfect. Like for instance alcohol and tobacco limits: they are a success, even if they don't totally prevent children from consuming those drugs.
A smart device ban would be similar to the ban of those substances. Not terrible, not great, but much better than status quo.
In light of these successes we should ban smart phones from under 16 year olds. Computers too, after all those can also be used to access AI tools. Anyone who says that adults taking the bare minimum of responsibility has anything to do with parenting instead of taking agency and responsibility from teenagers is just a small-government naysayer