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.
As of now there already countries who started to banned bitcoin and I think it is a bad news especially to the people who invest or buying bitcoin. Government bans bitcoin simply because they can control it and even a bank can't manipulate it. Lastly, I think it is the reason why some government started to banned it.