Well I totally agree with the idea that it would be stupid for a government to ban BTC because this could put its country in an economic disadvantage. However, China has demonstrates us that a kind of banning is always possible. What is the point of this exchanges and ICO banning ? Do they have a wise strategy behind it ? Could be...

To answer your question, if my country was a big country I would maybe sell my BTC if I learn they plan to ban it...