If a country does not allow their citizens to exchange currency, then this is as good as a black market and comes with the same risks as obtaining currency through any other black market means.
check binance & other markets - e.g convert USD 10 to USDC
Of course, if you're a US citizen transferring 200k USD from Chase to Bank of America, crypto doesn't make any sense.
Definitely not lower class people like you seem to imply (or perhaps I'm just reading into it?)
What, in your opinion, are your options for transferring abroad the cash you got from selling your hard-earned assets?