it can be happen if government accept bitcoin in their country and i think global can accept it as well 
because bitcoin has high value than a us dollars and much profitable.
The sole reason why you think that bitcoin is so profitable is because you're getting paid in bitcoins. If you're getting paid in Euros, you'd say that euro is more profitable, right? There are other things that you can do in the real world and I think fiat actually pays more than bitcoins. You get paid for 10$-15$ per hour in your day job while in bitcoins, you only get paid a couple of dollars per day. because bitcoin has high value than a us dollars and much profitable.Globally, people can receive and send bitcoins. Not sure why did you even have to mention that. You are free to use it and the government can never change that fact.