Yeah I'm talking about Argentina.
It's not so much a day to day living with crypto kind of situation but rather a being able to save one. Say you have a salary that's getting devalued by the month yet doesn't raise at the same rate.
If you're lucky enough to be able to save say 10% of it, you want to stabilize it's value somehow. I don't even mean invest at a profit, I mean have a way to save that money so when you do need to spend it down the line (say to buy a 100k USD no-bedroom apartment to live in), you wouldn't have lost most of your savings' value due to inflation.
You can't hold value in land since there's no credit, cars are 10x as expensive due to the economy being so protectionist, and you likely don't have space to hold a stock of long-lasting food that you might be able to sell. Crypto, particularly stable coins, is then a very attractive option in such a situation. You could buy 50 DAI a month for example and then have a good shot that when you need it a few years later, it'll still be as valuable as it was when you bought it.
A lot of old people who trusted cash and didn't realize how bad things are getting and didn't invest in a solid keeper of value, are only now realizing that their whole life savings are worth about as much as a TV, and even less every month.
Nowadays, even kids need to learn about exchange rates to keep up.