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.
I do not think to use this currency as a payment tool to replace Fiat, besides requiring time in the transaction, it is also very ineffective for me, unless you use crypto for large-scale transactions.