Dude, take a look of the age of people you ask.
Bitcoin is born on 2009, just peoples 17 - 35 yo with intensive online activity will know it.
No need to generalize. In my area, there are a lot of Bitcoin traders (in Localbitcoins) who are aged 50 or above. My cousin is just 15-years old, and his Bitcoin holdings are quite impressive. It is true that the 17-29 age group accounts for the majority of the Bitcoin users. But usage is spreading across race, age, and gender. And that is a very good sign!