They already are. Just bought 20

Who are they possible gonna offload that bitcoin on to? Their neighbor? That doesn't strike me as a socially acceptable thing to do.

There's a deep and liquid market for Bitcoin - El Salvador isn't even a major holder in the grand scheme of things. I don't see what's socially unacceptable about selling Bitcoin to a willing buyer; it's simply a transaction between two parties, no different from trading foreign currency like USD. There's also no indication that they plan to spend or trade their Bitcoin anytime soon.

> i don't see what's socially unacceptable about selling Bitcoin to a willing buyer

Well you're accepting payment for something people are expecting to hold value. Bitcoin only has value to a small subset of people with money. I'd definitely judge you for selling it if you have options for financial transactions via SWIFT.