Cryptocurrency is becoming more popular in the world, if it comes to knowing about it, probably no one ever once heard the phrase "BitCoin". They are so popular in the media. However, to understand it is not much, and the number of people on it is still very modest.
I agreed with what you said about bitcoin been popular and I believe one of the reason it now popular was the statement which was said to be made by the IMF director concerning the Central Bank to issue their own cryptocurrency but bitcoin was only aware of in the city and the last time I checked about 2-10% of the world population are cryptocurrencies user. Besides, most of the new people that hear about bitcoin are yet to know what it entails. However, I believe with the help the social media like facebook which give free browsing network we can expose and spread cryptocurrencies.