honestly think this is not gonna happen, the normal currency's are just too big to take over in my opinion.
Maybe if the normal currency's will get smaller its possible but I do not see this happen at all.
Me too I don't think that this is going to happen because the use of fiat money has been established for a lot of time already.
But I would say that there is going to be a chance if the government will implement will be used as secondary currency but no the primary.
This is more feasible than making fiat money lost.