I dunno.
I pay all of my bills in person.
Of course, I don't have a whole lot of bills anyway, and they're all local.
All sorts of methods of payment are offered by everybody here (in person, mail, bank transfer, internet), and it might be a waste of time and gasoline, but I do it anyway.
It's part of my ongoing self-improvement program. It's a natural, almost a supernatural compulsion, for the deaf to withdraw, recede, stay out, and this is one of those little "tricks" I use on myself to stay out in the real world, forcing myself against my natural tendencies to deal with human people.