The third world countries such us kyrksitan is that the currencies has no value.
What's that country?
Do you mean to say Kyrgyzstan? Not all third world countries sees bitcoin as no value asset. You are thinking too much and ending up with that conclusion.
So You Can't Even Exchange them to other currencies... What They do about it?
Its Not spoken problem much but its a problem
Are you expecting that most countries will be into cryptos that easy? give them some time.