Dollars have fundamental demand because, among other things, you have to pay US sales taxes in them. > Things, crypto, dollars, gold, and towels, have value be

Dollars have fundamental demand because, among other things, you have to pay US sales taxes in them. > Things, crypto, dollars, gold, and towels, have value because people WANT them. That's it. People would want a lot of things if those things were free, question is what the demand curve is.