Every country has a law and has regulations to be followed.Maybe the one who is leading a country that banned or give punishment if people uses bitcoins dont like or see bitcoins as a threat to his country.
Maybe the leader himself is not open to changes or open to innovations because Bitcoin has changed the way transaction works and how it possibly can change how we transfer money from one place to another.
This can be true and this is quite expected. We should not expect everybody to embrace new changes especially when it comes to financial infrastructures like what Bitcoin in particular or cryptocurrency in general can be bringing on the table. Change can take some time. As they say, Rome was definitely not built in a day.
One big reason why there are those who resist and oppose Bitcoin is because this is not issued by any power and is not really backed by any tangible assets like gold or any metal for that matter. Bitcoin is representing a new paradigm which has no role model in the past. Partly, using this view, one can say that Bitcoin has its own risks embedded in itself.
In the coming years, we can witness how Bitcoin can go mainstream and be really adopted on a global scale. However, as in the study of human nature, we are not also sure if there would be an intervening event along the way that can change the trajectory of the Bitcoin growth...people can only analyze and even predict but the actual events can be beyond our own hands.