I do hope we're seeing the future of a trend of living healthier lives.
For the near-term, I also worry that there is more than just the motives of early adopters among some of the teens, though. I get the feeling sometimes we're dealing with the kids who would have turned to something like anorexia or compulsive exercise otherwise. Those things are possible to practice within the context of paleo.
I'm sure I'm not the only one who has noticed the extremely precise food logs and tendency to not consume enough calories.
Even if paleo leads them to practice a healthy version of the proving control or their own bodies aspect of eating disorders, I do wonder if there's something we need to know about such issues that should color our advice.
I do prefer that they seek advice any way they can if the alternative is to approach paleo as lurkers. They need to forge their own paths. I would prefer to know they had great, advice-seeking relationships with their parents, but I also know sometimes parents are the source of their need to reclaim some control of their own lives and there's nothing we can do about that.
And probably most of us have a touch of obsessive nature anyway. We're actually in a decent position to advise because we're in no position to shame anyone else because of that.