That's pretty much what I said, and one of my key points to argue that BTC will never achieve medium of exchange, a.k.a, currency status among retail, which will continue to use fiat. Both because they will be priced out of transacting with BTC by the big economic actors (I repeat: transacting with BTC, not simply buying it), and because States will simply continue to issue fiat and force them to use it.

Even in places like Argentina, the USD is not used for common daily stuff (a.k.a., "buying lattes") but for bigger and longer term transactions. In fact, the USD is rather used for savings, that is, as store of value, as another form of property, which is eventually converted to the local currency when it's time to transact. Just like Bitcoin.