I read the local news, and there is several articles that made me interesting, a few weeks ago, the mobile version of the Bitcoin wallet bitcoin platform decided to eliminate the conversion of bitcoin currencies with USD. then replaced with Satoshi.
the decision was taken to eliminate dependence on fiat currency. because bitcoin capability if converted to fiat, will interfere.
developer samourai wallet says "farewall fiat" or "goodbye fiat".
for some reason I feel this post is funny, I guess what you say isn't necessarily happening, even if it happens it will probably take more than a decade. we will never know
the fact is that up to now we still use paper currency and the main thing you are joining here is most of the time to get lucky and then exchanged for fiat money.

It is not only funny. It is very weird. I cannot even guess that the society will be ready to use only Bitcoins and altcoins. Fiat will live and it will not die ever.