What If Bitcoin is banned in your country will you still use it?
If you use it how will you? How will you exchange it and how will you completely use it as you do before.
If Bitcoin will be banned, it will negatively affect its market value because, surely, its number of users will decrease that will also affect the demand that it is having from the market. I would probably move into another cryptocurrency, preferrably altcoin if this would happen. It will be useless for me if I won't be able to use and spend Bitcoin.