This idea is already know from projects like PundEX, STACK etc.
it is very difficult for someone to create an idea that has not been created and implemented by other people, I remember that one day I was thinking about some business idea to do in my country, I already did transportation neoga, but I wanted to do other business, but I confess I had a lot of headache to think of some innovative idea and I could not think of anything. this to say that it is very difficult to have creative and unique ideas.
I don't know if this can actually work as I think that it needs specific POS for this kind of transactions
and to add, I think it would be necessary regulation
I just want to know if you would embrace an idea of crypto payments.
I would embrace this idea, but there are things that would be great obstacles, for example what @Pentagramis said, the regulations, the demand, I mean this would be very difficult to implement in real life. I do not know if you've done much research on the subject.