In my research, many countries know about bitcoin, but many do not believe in bitcoins, because most know about bitcoin scams, scams because they do not know how to do it or process it, they believe they are different man legit it. But those who know bitcoin are the only ones they talk to their friends or family.
In my opinion very few people in the whole world know about cryptocurrency and bitcoin. With the passage of time people from all over the world and will put their money in bitcoin. When ordinary people come to know the value, market cap and importance of bitcoin they will definitely put their money in it for the sake of making more and more money.