Turns out there's no guarantee that any particular private bank has to offer you their service, so there are some people who simply don't have a bank account. I

Turns out there's no guarantee that any particular private bank has to offer you their service, so there are some people who simply don't have a bank account. If you're gonna do anything to do with official papers, you have to be at 100% (not 99.999...%) coverage. Which IMHO is just one more reason why this kind of thing is dead on arrival, given that it requires a smartphone.