And to change these ridiculous pieces of paper for others each time you cross an imaginary line called a border drawn by a mafia called the State.
Or pay ridiculous exchange fees to get the electronic money of the other countries if you have a bank account.

Anyway. No... Fiat doesn't work great AT ALL. This is not how money is supposed to work.
It should be  emerging from a free market and thus be the same for whole humanity IMO