Crypto is cool only because prices went up.
If price falls nobody cares.
Bitcoin is currently at 4,5 $. I wouldn't buy any bread with it.
Online platforms also didn't care about crypto after they implemented it in 2017. History repeats itselves.
And i think the problems of those countries are bigger and won't be solved by Bitcoin. Guess we'll just have to wait and see about adoption, just like in 2017 when it never happened.
Keeping your Bitcoin on a "hot wallet" would be what most people do and it's definitely not safe.
Governments here also guarantee till 100 k. Which can't be replicated with a cryptocurrency ( yet? ) Because of lack of centralization.
You can watch https://www.youtube.com/watch?v=-Vcgy1wli9k to understand what the case use is going to be for Bitcoin in El Salvador.