To me i think there are some part of the world that still don't know anything about Bitcoin, because there are people in USA, UK, Australia, Canada, China,etc. even in Nigeria there are people that don't know anything about Bitcoin, they always think that Bitcoin is a scam, but people that know about it are making thousand of Dollars,($) I think they don't know that we are in a digital world now.
many countries right now knows about Bitcoin so any country that does not know about bitcoin know that the country is not civilized because bitcoin has been into existence over 20 years now if I am not mistaken so bitcoin has been all over internet and the many people knows about Bitcoin