I don't think you can ban bitcoin that easily because currently there is no law to stop someone from buying a digital stuff and bitcoins comes in that category but maybe in future, there will be a law (not sure).
Even if the bitcoin is banned you can easily access your wallet using a VPN.
I think they wouldn't create laws to ban bitcoin. They can make more strict regulations at most, if you ask me. And this follows little problems in bitcoin. China made regulations about bitcoin if I'm not wrong.
I think no and there is no need to ban bitcoin countries have made bitcoin legal and now some banks also start accepted bitcoin because bitcoin is a digital currency and its work is here to change a life of people bitcoin also reduce un employment in many country so countries need bitcoin for their economy so I think rather than to ban bitcoin we must support bitcoin and all countries make bitcoin legal because its helping humanity.