Some countries were already banned bitcoin, and here in my country they did not banned it not because they don't know what to do but they find bitcoin as an interesting and a great opportunity for the people, and a big help in our growing economy.
Actually, there are some countries who already banned bitcoin because they think it is a scam even though it is not a scam. In addition to that, I hope they will unbanned so that many people will have free to use it and I think once they unbanned their economy and industry will really grown up and it will have a positive effect in their country.