Observation. I've worked with hundreds of kids aged 8-16 from all different backgrounds, all part of the "digital native" generation, yet hardly any can tell the difference between a web browser and the internet. The more technically inclined ones know how to rip mp3s from youtube videos, but none have heard of bit torrent or file-locker sites. Most of them are surprised to learn that webpages are made up of computer code, and more surprised to learn that anyone can learn this code and make their own websites.
Yet the parents all watch in awe as their kid swipes their tablet to play Angry Birds or Candy Crush. And then they remark "Man, kids these days. Just give them a tablet, and they're already figuring out how to use them. Guess the younger generation's just better at computers. Better than I'll ever hope to be!"