[kragen]

The dude standing by the bank with a shotgun isn't going to accompany you even to your AirBnB, much less until you leave the country. He needs to be there to keep people from robbing the bank, but it's not his problem if someone follows you home from the bank and robs you there.

There may be other reasons. Here in Argentina 21 years ago the government confiscated all dollar-denominated bank deposits and replaced them 1-to-1 with pesos, which you weren't allowed to withdraw more than a few at a time, so you had to watch helplessly as your money lost 75% of its value overnight. If I had to guess which South American countries something like that would happen in next, I'd pick Venezuela, Bolivia, Paraguay, and Argentina again, in that order. But that's not because I have deep knowledge of Paraguayan politics, so I could be wrong.