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
More than 20 years 
It becomes a big question mark when you say Bitcoin has been around for more than 20 years because if you subtract 2024 from 2009 the result is 15 years (and even then it's still not there because this year there are still some left over for the next few months). So you don't need to trick more people because you are enthusiastic enough to say it's been more than 20 years while almost everyone knows that Bitcoin hasn't been circulating on the internet for more than 20 years. Although I would also assume that if there is a country that doesn't know about Bitcoin, it is probably a country that is very underdeveloped at the moment.