It’s an unfortunate historical anomaly that people think about the paper in their wallets as money.
The dollar is, technically, a currency. A currency is a government substitute for money. But gold is money.
Now, why do I say that?
Historically, many things have been used as money. Cattle have been used as money in many societies, including Roman society. That’s where we get the word “pecuniary” from the Latin word for a single head of cattle is pecus. Salt has been used as money, also in ancient Rome, and that’s where the word “salary” comes from; the Latin for salt is sal (or salis). The North American Indians used seashells. Cigarettes were used during WWII. So, money is simply a medium of exchange and a store of value.