That can certainly help, but embargoes have prevented some countries that have experienced collapse to get their hands on more stable currencies like Euros or D

That can certainly help, but embargoes have prevented some countries that have experienced collapse to get their hands on more stable currencies like Euros or Dollars. For private citizens with no access to international forex markets, crypto can be valuable in such scenarios. Again, it happens so sporadically that it's not worthy of big money investment (certainly is no reason for Bitcoin to be worth $1M or whatever some people forecast)...but does show there is -some- use.