Yeah thats true, but I think this is another problem how to convince people to change from fiat to crypto. But in this post I am more interested how well it would work if this step is already done and ALL people use only crypto as a currency. By thinking that way it makes it easier to find problems with crypto as a world currency and maybe tackle those problems.

I think this is important to discuss so that we have good arguments in convincing people to use crypto currencies.