Disallow Exit from Schooltime

Our middle school will not allow smartwatches unless they are locked into watch-only mode, and *cannot* be changed out of this mode. They do not want any pinging notifications or other distractions possible during the school day, and I agree with them.

As a parent, I need the option to disable Exit from Schooltime. This way she can keep the watch on her wrist. The alternative is that she has to put it in her backpack during the school day, but we worry it might possibly be stolen.

I guess an alternative would be to use Screentime and set the school day as Downtime (so SOS to parents still possible), and lock it down. But this is essentially what Schooltime is supposed to be. So it would make more sense to make Schooltime work as it should.