These countries don't accept the Bitcoin because of the rules they have in that country.
But I think that these countries will eventually support the Bitcoin because many other countries accept it. And maybe they have to see how good the Bitcoin is to change their mind
for bitcoin is decentralized and can not be controlled by the government, then bitcoin will never be profitable for the government and during that bitcoin will never legalized by any country
It is true that the Government can't make any profits from bitcoin and can't even put a tax on it because it is decentralized, but this doesn't mean that the Government will declare that the bitcoin is illegal, in some countries yes it is illegal, like Russia, Iceland, and so on, but not in all countries. Because here in our country, bitcoin is legal, but the Government is not accepting it yet as a payment on every transaction that we will have on our everyday living.