Phones are the new cigarettes: why restaurants are discouraging and even banning them
(www.theguardian.com)
To answer the first question posed. Would I hand a form of id and communication at the door of the bar for them to keep? No.
Are you crazy? Don't touch that. Like listen I don't go crazy like other people do, digital wallets, important 2fa, etc and of course it's encrypted at rest and locked but still no, don't touch that.