It would be great to see cryptos replacing fiat money. I know some people do not want to see that happen but it is an option. Nowadays, it is very hard to use cryptos in daily routines. It is hard because of the exchange rates and places to do it. It can be done online and it means you need a good connection. The world is still dominated by banks and they do not allow cryptos. Some countries do not allow their citizens to use cryptos as well. In that case, it is very hard to use cryptos in daily routines. I believe this will happen one day but not now.
My personal opinion is that this will not happen. Just as Libra is having a hearing at Congress, they know the outcome of using crypto in payment and Congress and a lot of countries are trying to prevent this from coming true. because when transactions are carried out on a ledger that the government cannot manage, the CPI and related indicators will greatly affect and cause confusion in the control of the economy of the country. country. This is one of the things that no government wants to happen, because it can bring down a whole country system.