They usually don't get it under given circumstances. Argentina is a good example of what happens when a currency fails. Several times. Yet it's still a country, still issues fiat money, lenders will still extend them credit. In some of these scenarios, economies start substituting the fiat currency of another, more stable country for commerce.Then, everyone we owe will want their money in the new WRC, whatever that may be.
The Pound Sterling is a past failed currency. It's also a past reserve currency. Yet Britain is still a functional country, definitely living under a more restrained standard of living. The Pound is still a thing even in straitened circumstances. Britain may be a model for the future US. That is, a functional country forced to live at lower standards. Which has been living beyond its means for decades.
