Why not? Unlike governments, private companies can't coerce me to use their currency. If I think their currency is garbage, I'm totally free to not use it and t

Why not? Unlike governments, private companies can't coerce me to use their currency. If I think their currency is garbage, I'm totally free to not use it and to convert any Libra I receive into USD. That's not at all true for government-issued currencies. For example: If I try to pay my taxes with anything other than USD, men with guns will come to my home and put me in a cage.