That is not true, for the vast majority of the history of money it was based on a commodity that was valuable in its own sense. It is only in the last century that we have begun experimenting with currencies that are not pegged to the value of a commodity.

Cryptocurrencies derived their value from being a network of users (metcalfe’s law) so they are more like a commodity money. Thing about something like Meta, which has a valuation in the trillions despite its physical assets not be worth nearly that and its functionality as a website being easily replicated on an alternative platform. The users are what is valuable.