I think the governments of many countries do not agree with the development of bitcoin currency in the country; there are many people involved in bitcoin in the country has not developed the economy so many governments very scared of a panic.
some governments disagreed because it could threaten the existence of their local currency and could add to financial crime so some country banned bitcoin to be used and it had a very bad impact on bitcoin, but I don't think that bitcoin can die because of the government? because you know that bitcoin can not be interfered by anyone