I would think that a _total_ ban on devices _during school hours_ would hit the 80/20 mark of preventing psychological harm to kids, without the invasiveness of digital ID. Idiot parents that say "omg what if i have to contact my kid during classes" can blow it out their collective *sses - it is they being invasive and harmful.
Interesting to see in 10-20 years if this will have a significant impact for the mental well-being and intelligence of young adults. I'm assuming it will be pretty obvious.
"Growing list of countries move to require ID for the modern public square, media launders this as a restriction on children and social media companies (despite those same companies lobbying for it [1])."