At a check-out counter of a grocery store?
The cashier:
(1)How are you paying? by card or in cash?
(2)How will you be paying?by card or in cash?
People tell me that (2) with future continuous is more polite than (1) with present continuous for future. Is it right?
I would like to ask why (2) is more polite than (1) in asking someone about something in the future ?