It sucks when conclusions are drawn that ignore anecdotes.
I am not totally against parents controlling their children's behavior, but I am wary of how trivial it is to take that to the extreme, without even realizing it, because of a collective fear that is promoted by those around you.
I am quite certain that measures of control over my "computer use" would have been detrimental. It's important to not throw that aside in discussions like this.
I'm not saying strict controls are always the right thing, I just wanted to provide a counterpoint. I agree that balance is important and that not all situations are alike.
My parents limited video game time, and I think they were right to do so. I still managed to become a (fairly skilled, I hope) software developer.