actually not many want to eliminate fiat currency. in my opinion, crypto currency and fiat should go side by side, because crypto will be increasingly recognized. maybe you see a lot of people who want fiat currency to be replaced with crypto, but believe it is hard to happen.
crypto is not acceptable to many people, even today there are still many people who still have problems with the bank system and the use of ATMs. universally many will not be able to adjust economically, and fiat is the most quality model. Fiat removal is very unlikely, but the volume of crypto users will indeed continue to increase because the era continues to grow.