Let's look at a specific situation .. I have a lucky holder of a set of crypto-currencies. I come to a boutique and I want to buy something for which I would like to pay with crypto currency. What I should do?
To do this, it will be enough to inform the seller or manager that you are willing to pay for not with a fiat, but with a crypto currency. Further actions will be performed via the pos-terminal using your electronic crypto-computer.