I was watching Neil Cavuto today on Fox, and he was making a huge deal out of how Nickelodeon's kids' poll had Obama 2 points ahead of McCain. (The Real Clear Politics average of all the national polls had Obama up by 5.7 points today.) Cavuto's argument was that kids decide who they like based on what they pick up from their parents. So maybe a lot of people are telling pollsters that they'll vote for Obama but are privately supporting McCain at home. Their kids then pick up on that and say that they like McCain better.

It's an interesting argument, but I think it's completely wrong. I believe the reason you see the difference between the kid polls and the adult polls is because so many of Obama's supporters are young people who don't have any kids yet. To me, that does a much better job of explaining the discrepancy.