Oh no, not Sri Lanka!!!! But all jokes aside, for small countries banning crypto is far easier than dealing with the ramifications of multinational criminal organizations trying to launder there money. Or even more recent news of Russian hackers using bitcoin to help sway the US election. What does a small country like Sri Lanka do when criminals try to go through their country to obscure the source of funds? Sri Lanka has a strong banker presence as well. The bankers want to protect themselves from crypto or at very least not have to spend money trying to stop this new technology from disrupting everything.