I would like to take up the points of an article published on
Bitcoinist. (Even if some will say that this media is Pro-Bitcoin the points are the most important.)
1. Laws Cant Be Written Against Bits and Bites
2. You Cant Ban Open-Source Distributed Software
3. Bitcoin Can Be Broadcasted via Satellite
4. You can Send Bitcoin Via SMS
5. You Cant Shut Down the Power Grid
Any regulation can't prevent us from using Bitcoin. Despite their attempt to keep an eye on the system, it is simply impossible for them to ban people using it. So why giving a fuck to "I'm afraid my country will ban Bitcoin!"
They have nothing to fully stop the ecosystem that is currently emerging.
That is actually a good list and there might be some addition to that list. We can say that as long as there is Internet then Bitcoin can still exist. As long as there are Data usable then Bitcoin will still be usable for those who can access it. Some Countries might limit the use of it but Banning it sounds impossible. Having some regulations to avoid abusement might be helpful and teaching Cryptocurrency and Blockchain to those who have few knowledge about it might change their minds.