Define bitcoin as currency: Australia, Sweden.
It is clear that bitcoin transactions are illegal: Indonesia, Bangladesh, Bolivia, Ecuador and kyrgyzstan.
Clearly identified as legal means of payment: France, Japan.
Specific economic activities related to bitcoin: UK, Germany, France, Finland, Norway, Russia, Singapore, Israel.
The first country to recognize the legal status of bitcoin: Germany.
The first country to block bitcoin: Thailand (now a changed attitude)
ICO's country: China, South Korea.
Countries with positive attitudes to ICO: Russia, France.
Japan: embracing reform, licensing, and overall regulation.
Japan, as an innovator in this reform, has been on the cutting edge.
To sum it up, most powerful countries favors the use of cryptocurrencies, ICO and blockchain while the underdeveloped,poor or outdated countries are the ones who banned it very early because they know the can't handle its complexity.