It is true that many services out there are accepting bitcoin, but it doesn't mean that we could use bitcoin in whatever we wanted to do. For example is this bribing idea through bitcoin, we all know that bribing is illegal, and you could end up on jail if we are going to get caught. So, this is an issue which may cause for a certain place or country for bitcoin to be banned because of this.

And there are many countries out there banned bitcoin because of being misuse by the people, like buying illegal drugs, guns and so on in the black market in the deep web.