Underdeveloped countries, in which the state controls everything.
I'm glad that this is not in Russia, but it may seem
Yes, plus, passive population that accepts everything that is imposed to them.
The reasons why these countries banned Bitcoin are ridiculous. It's like banning airports from the country because airplanes crash or to ban all the cars because they can cause accidents and kill people.
Every place where the most part of population is passive, it's a fertile soil for maniacs trying to control people's lives via the big state machine.