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.
Maybe I won't use it and will move to other cryptocurrency probably altcoin. There'll no point of using Bitcoin if I won't be able to use it or even access it. But surely, it will negatively affect Bitcoin's market value because its demand will fall if that would happen. But it is possible to still use it, you may spend it abroad or do tradings using Bitcoin, in that way you'll still be able to make profit out of it.