From what I have seen so far in this forum and other crypto platforms, most of us want fiat eliminated. But let us not forget that there are still situations whereby we can't use crypto except fiat like in rural places without computers or even internet facilities.
Definetly thats true,for us now we should not totally eliminate the fiat currency and even in the future we could not implement fully a cashless society all over the worlds,because not all country should aware this crypto technology,because there are some country who belong into the thirds poorest thats have no internet connection and computers and even the people become wonder what kind of oppurtunity this crypto and they need to be educate.