I have found any one over the age of 50 has no idea what it is and will never use it willingly; 95% of women under 50 that know about it think its no different then world of Warcraft gold or online tokens for video games. Bitcoin will never be main stream. At most 5 to 10% of the world will adopt it. But it will always have a place in the world.
Older generation don't stay that way forever, they have this habit of eventually getting so old that they die
![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
Younger generation then become older, and are then the adults. So maybe we'll need another 10-15 years before that kind of effect takes place. We also don't need 100% adoption to thrive, we've been doing pretty well with just 0.01% to date