Why? Do you not note when you have bad service at a store and consider that when deciding whether to shop there again?
That means that:
- I have to have a card with me.
- I have to have the right card (based on the type of charge).
It may not be a big deal to you and that is totally fine, but it is a big annoyance to me and definitely make me less interested in shopping somewhere.
Maybe in your world you just drive aimlessly until randomly finding a store and then go and see if they have what you want. I know where I am going before I start the process. I would not head to Wal*Mart in the first place, because I know that the shopping experience there would annoy me (not just that I would have use a physical card, but that the lines are long and the selection of the products I tend to purchase is limited).