As long as everybody has an access to the internet, then there's a possibility that BTC can be used by everyone. It is obviously a digital currency wherein internet is the basic and needed way.
When we use our coins for our daily needs, people will come to know about it and when we tell them about the benefits of bitcoin they will take interest because bitcoin is not only currency but also a very profitable business. Two in one will be acceptable to everyone. They will easily come towards bitcoin because everyone wants more and more money to earn.