Crypto currencies are still in the adoption process and many people started to use crypto than before but still it maybe 20% of total population so we still need to get that remaining people to use our bitcoins in our day to day life.
Curious, but I saw that the question was asked in 2014. It means that even that time people were hesitating about the future of the cryptocurrency. I believe that it will be used for many years, and our children will know about it more than we do.