Should the same high-inflation state come to the US it would be a very interesting state (technically interesting, not meaning this in a nasty "I plan to watch this show from the outside" way). With current opportunities to easily move between the dollar, other currencies, gold, BTC, etc. should the high (20+%) inflation expectation become entrenched the government will find it hard to force people to buy dollars.

When anyone can move a large hedging sum from dollar to Swiss franc or Norwegian krone, forcing the local citizenry to buy rapidly depreciated fiat is virtually impossible. My 2c.

Also, after three decades of globalization currency controls will hit virtually every business, so this will likely be broadly unpopular. Again, not impossible, but I personally view it as very unlikely without dictatorial powers held by one, or a very few, strong individuals. But we shall see...