I mean, you could get social media companies to turn posting off during school hours, that'd sure take the wind out of the sales of most of the most blatant things students do when they pull their phones out in class
Little derps get their news from that shit anyways, let's treat it the same as the 24 hour news cycle crisis and just make the companies stop for the parts of the day where people need most to be focusing on other shit. No airwaves, no airwaves occupying everyone's eyeballs and sending them into doomscroll mode.
Honestly that could be a pretty good gimmick for a new social media company in general, you can write, snap, record, photograph whatever, BUT all posts publish in the morning or evening "editions" and comments are open for 2 hours after (you can go back and comment on old posts), I feel like it could be an artificial scarcity thing, if people only have limited time when they can use the platform in a day, they'll make the most of that time whenever they're able.