I don't really have any interest in crypto currencies, but they seem to have fond some use in remittances to countries with dysfunctional governments and hyper-

I don't really have any interest in crypto currencies, but they seem to have fond some use in remittances to countries with dysfunctional governments and hyper-inflation that don't allow conversion to USD. It is in some of those circumstances illegal to move in and out of the local currency, but is that a just or reasonable law? If ETH or BTC allow Venezuelans(as one example) in the US to help their relatives buy food, is that not a good thing? There are numerous accounts of people fleeing war and persecution using crypto currencies to escape with their life savings. That seems like a good use case. Not everyone gets to live in a place with strong rule of law, and bad governments love to seize people's bank accounts and hard currency.