Yes, you are right that they are legal, I misremembered. Good catch. The spirit of my comment shouldn't change though, if I instead refer to the establishment

Yes, you are right that they are legal, I misremembered. Good catch. The spirit of my comment shouldn't change though, if I instead refer to the establishment of a U.S. dollar. That being said, the fact that you have to pay rent with legal tender in states like CA goes a long way in regulating private currencies.