It is said that strong states in cyberspace such as the USA and England are following the bitcoin. Is this true?
By mentioning countries you mean government? However, government can't control the adoption and popularisation of Bitcoin. However, if you meant general folk then YES! Not only America (don't know if you meant USA or Subcontinent) and England but the whole world is adopting it. At present scene, developing countries like India are more enthusiast for Bitcoin whereas developed already integrated it!
By mentioning countries we can also consider their people, we know that still bitcoin is not consider as legal currency, while their people are still using bitcoin, we in most of the countries still people have no proper knowledge about bitcoin therefore they are not using bitcoin, but I think once they will aware the importance of bitcoin then they will certainly start accepting bitcoin.