Many countries think that Bitcoin is harmful for their country. They think that Bitcoin will create inflation in their country. But is that right? Will Bitcoin never get all the legitimacy?
For thier country and as per laws it is not suitable as the government wants the control of whatever they allow and on btc or other thing they might not have such control due to which they do not prefer. In such scenario they can ban use of such coins if they feel it can be harmful to them.