I imagine this could be set up on the operating system side. All the apps would receive is a go/no go signal, not fine coordinates
Or maybe the schools just don't let kids bring phones in at all.
That’s the same geofencing by another authority
That would be a good start. I guess someone at Apple has already been brainstorming about it for a while. I still think geofencing is a poor bandaid to patch a problem we've created in the first place. Just like notification filtering rules, it's like liquor vendors referring you to addiction therapy.