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.
This can't never be happen by eliminating fiat money in our life, although we this generation are slightly conquered by the virtual world. Because we know that there are several rural places that didn't reach by the cryptocurrency ecosystem so we can't just eliminate fiat money. I think we should wait the right moment that the crypto world are totally regulated and already known by the whole world.