gunsynd: I'm a cash or bank person so I don't use credit cards.
I try to use real cash from time to time, but the cashiers frown when they see me opening my wallet and using half a minute looking for some small coins. Then after awhile I get fed up myself and pay with a big bill, and get even more small coins. I drown in coins, soon I could probably open a similar coin vault as Uncle Scrooge, swimming in coins.
Even at our workplace canteen, they are now pushing that people would pay with a smartphone app system to make the cashier lines go faster. Apparently they don't want people to use cash either.
When I go to e.g. Thailand though, I prefer taking cash with me there (a couple thousand euros is usually more than enough for four weeks). I don't trust using a credit card there. I think I've used it once in some thai supermarket, and after that I received a call from the bank (all over from Finland) that someone is trying to use my credit card in Thailand. Duh, yes, it was me. :)