At no point during the vaccination process have I needed to produce ID of any kind. I've verified my identity with some very basic questions, but my address was not one of them. Got jabbed, got proof I got jabbed.
I have no fucking idea what that cat is talking about, but I know that nightclubs are not welcoming to the homeless, vaccinated or otherwise.
Still, got to be the most conscious twat in the room and all that.