In Sweden they sometimes do it with a phone, as you can Swish to pay directly to phone numbers. I'm not sure how they register with a bank and their ID though, maybe it's not theirs or they share it.

Nevertheless, they really shouldn't exist. There should be enough housing and emergency provision to help people in emergencies, and they need to crack down hard on the foreigners that come and use it as a way of sending money back - e.g. https://metro.co.uk/2017/02/20/gang-of-beggars-pictured-gett...