I completely agree that crypto will be the currency of the future. Cryptocurrencies are already used all over the world and constantly more and more countries begin to legalize cryptocurrencies and recognize them as official currencies, this is just a matter of time when the whole world will already fully begin to use cryptocurrencies with its full potential.
yes, i agree to you with less transaction fee and fast transaction for sure cryptocurrency will replace fiat in the future, and alot of countries are now accepting cryptocurrency as a payment system.