Places like Egypt, Morocco or Algeria have set bitcoin use, illegal. What exactly stops people that live there to do bitcoin transactions since no one controls the network? And yes, without "cutting" their internet connection.
I'd say that NO. Precisely because it is a decentralized, open technology, the govmnts of any country can't just shut it down, it'd take serious efforts and there's realy not much in it for them. Best they can do is join the movement, check Argentina and their government backed efforts to adopt the blockchain for example.
For some reason I made this comment on another thread, thinking I was answering to this one haha