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.
Personally, I see that cryptocurrencies in the future may well become a replacement for money and become a future currency. However, you need to understand that for this, the technology itself must be adopted on which cryptocurrencies work. It is also worth understanding that even if cryptocurrencies become new money, then each country will have its own official cryptocurrency. Those cryptocurrencies that we now know are more like a trial version of launching both technology and cryptocurrencies as money. In any case, we need to hope for the best and follow the world news related to finance and cryptocurrencies.