I've been paying all of my bills (i.e. utilities, credit card, mortgage, airline tickets) online probably for the past ten years now, or maybe even more. It's just so dang convenient that, unless I really have to, I'll never go back to lining up just to pay a bill or buy a ticket. Ugh, that's so neolithic you guys!
Which is why I didn't pay attention to the yellow ATM-like thing outside of our condominium's administrative office and considered it too much trouble to even find out what it was for. But curiosity eventually got the better of me since I would oftentimes see a person in front of the machine tapping on the screen or feeding it paper money.