Local currencies are a thing since the middle age. They allow for a distinct set of rules (=! Inflation rate) governed by “local” representatives. In strong economies (like g7), it does not make much sense, granted.

You may lose on the exchange processes vs “the global currency”, but your community may not care since aiming to trade locally.

PS : in constant inflationary economies (read Argentina, i think 600% in 10y), crypto is mainstream now for regular Joe's. Stable coins are all the rage to fight inflation.