This makes no sense. For any other good you could imagine that a particular product lay be preferred in some region on the world for cultural, geographically,historical reasons
But in the case of money, nobody benefit from the monopolies and frictions brought by all these different shitcoins. The only explanation is that some people benefit from a money under their own control obviously A universal money under nobody's control is useless for tyrans Fiat money only exist for mafias and tyrans to stay in power
Bitcoin fixes this