There are many people who still don't know about bitcoin or other cryptocurrencies. I don't know about others I am talking about my country and about my society. Whenever I ask from people about or talk about the Bitcoin. They ask what is this?
How much there is who face this problem?
I would say almost the whole world does not know bitcoin yet, many of those who have heard of bitcoin are not interested and just few people use it otherwise bitcoin would have cost 1 million dollars today not 30K dollars . We have to wait maybe many more people will use it in the future!