> So what kind of 2FA would be homeless-proof? I don't see a solution. Biometric? Amazon One's hand recognition would be a decent solution here, though I'll be

> So what kind of 2FA would be homeless-proof? I don't see a solution. Biometric? Amazon One's hand recognition would be a decent solution here, though I'll be damned if I've ever met someone willing to try it. And I ask, every time I go to Whole Foods.