I found this expression on the news channel about the crypto currency: "Anyone who will try to buy coffee for cash in 2023, runs the risk of causing laughter from the seller, that he does not use crypto currency."
how do you think, is it realistic? Can a crypto currency replace national money?
I think that it's possible, but it will take more time.
I don't think as easy as that and 2023 the speculation is too early if we want it to replace national cash it should be mainstream at 2020. Till date, many people are not aware about crypto and skeptical about crypto.