Conceptually I like the idea of giving everyone a locking pouch to put the phone in, with the ability to unlock it provided at the end of the event. That way t

Conceptually I like the idea of giving everyone a locking pouch to put the phone in, with the ability to unlock it provided at the end of the event. That way the phone never leaves your person, but is unusable. But at the same time this sort of thing would also make me kinda annoyed (as I have no problem, generally, keeping my phone in my pocket, on silent, when having it out is inappropriate0.