Fiat money doesn't work.
It's a fun ride as long you get off before the music stops. Woe onto those people who are living when the piper comes to collect his due. Fiat money always ends up in a huge, nightmarish crash that brings everyone down.
I guess some people are naturally drawn to boom-bust cycles and want to play drama queen. If there were no crisis they would simply invent one.
People who want stable and prosperous civilizations don't abandon metal standards for arbitrary paper systems. It's not something that sane people do.