In my opinion As long as fiat money still serves as a medium of exchange, it will always be needed by the people of today and therefore it will always have a function as an asset to all of us. although the best value-keeping asset is gold but even though gold is quite liquid, it is no longer money that serves as an intermediary.
if the fiat currency better for transaction tool, while gold is better for investment and not suitable for transactions. fiat currency the longer the inflation value the higher so it is only suitable for transact meet the needs of everyday life