Maybe, but at that point they would bin everyone's phone in a locker/stored in some controlled room. Also, FMI doesn't work if you have the phone but bluetooth

Maybe, but at that point they would bin everyone's phone in a locker/stored in some controlled room. Also, FMI doesn't work if you have the phone but bluetooth is turned off (as in, turned off in settings; control center only disabled connecting existing devices, but keeps BT on).