I think it comes down to the lives people have lead, I have a friend who could tell me every Prime Minister since 1920 and has an amazing knowledge of records over 4-5 decades, and knows about all sorts of things, yet he cannot really do anything with phones or computers.
He has a tablet (my old one), his 1st smartphone was bought this year and he has a PC. He would have stayed on XP if it wasn't for me, he has no idea about using USB devices and gets really confused with sound settings in Windows 7 and the same when he plugs in his PC into his TV, getting the sound to work.
He also needs a lot of help with a smartphone, "why is this happening", never accepts any app updates because he's worried the apps will break things.
The thing is, there's millions like him. A lot of younger or tech people generally hang around with people with the same interests, that why I have to keep reminding people on the mobile forum who think VoLTE is going to make or break a company if it doesn't launch in 12 months, or so and so's 60 meg speed test really matters, because actually.... you're the minority if it does, and I am too.