I made my big leaps and bounds reading when around 5 I was given a chance to work with DOS and win 3.1. I can say I would be a different person today if that computer never got dropped off from a family friend.

At 6 I was running through the registry messing up everything I can. (I once made the desktop completely iconless, didn't make for happy parents.)

Now I've got a 4.5 year old daughter, she uses an android tablet pretty consistently and I'm glad she's shown interest, I think I'll be getting a box setup for her soon now that she's showing a bit more interest.