I think physical store with crypto payments will be a trend in the future. later on more organizations will embrace crypto payments it will make a chain reaction and a few organizations will likewise attempt the blockchain technology to have the capacity to compete with other existing organizations.
That might depends, if that so, I guess stable coins would be a wide choice because, as we are humans, companies are too, and in that case, they will do everything to reduce the risk that they will going to take. So, they will stick to a static price and will going utilize a bunch of stable coins, maybe, bitcoin might be useful, but I guess ETH also.