I read this post from danah the other day about the erosion of youth privacy. I think she makes a very valid point. How can you know you have lost something unless you knew you had it?
It's difficult to find a balance between freedom to explore and learn, whilst limiting potential hazards. Imagine growing up in a place without cars then landing in the middle of a big busy city. Chances are that you will step in front of one as you don't know the danger. It's just as bad to be let loose in the middle of the City street from the start as the same is likely to happen. Maybe we need to build the controlled zones where people can learn.