> It might be a good fit there but trading in dollars would've fixed that too.

You are underestimating how toxic the Argentinian government was.

We did do that with capital controls, the problem is that it was illegal, and the Argentinian IRS is very active trying to tear you a new one. Argentina has long become a bimonetary economy, dealing with ARS for everyday transactions, but saving in USD and pricing assets in USD (real state for example).

To give an example where this would have helped, my parents in Argentina needed to send money to my brother in Europe. The government had made that illegal with capital controls, so I had to transfer him money through wise from a 3rd country and when at some point later I visited they gave me the cash.

People underestimate how annoying and distopic governments can be if given the chance.