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
They already knows the benefits that bitcoin can bring. It's just that they care more for those loopholes associated if they will accept this currency. One hole is the possible money fraud activity which needs a deep investigation before it can traced the money loss. Another one is the decentralized thing in bitcoin since centralizing bitcoin exchanges is not enough to make room for regulations for those user who will use bitcoin. Plus there are many more.
Making regulations in bitcoin is not that easy and never be will applicable by all of the countries due to the fact that every state have different views about the positive and negative things that a cryptocurrency will give.