You compared smartphones to previous tech such as Walkmans, and I explained how they’re nowhere near the same in the extreme case (unsupervised access). No school is gonna confiscate the phones as long as the kids listen. And the kids need to learn to listen to parents and teachers. Discipline is sorely missing in the new generation. Look at that series “adolescence “ to see the real effects of giving kids a smartphone.

And jamming is expensive and ineffective (you’ll end up jamming nearby devices not on school property too).

Yeah I think the adverse effect of handing an iPhone to a 10 year old in Atlanta, when that teen is still highly impressionable unrestricted and unsupervised access to the internet is far worse than handing a kid a Gameboy on which they can only game, or a Walkman on which the worst thing they can do is listen to Cardi B.