Originally posted by: Pervert-Sennin Jiraiya
thinking about stuff like this is what reveals you. i say get a life and think about other stuff for a change.

I disagree. I say you should think about details like this. This will sharpen your logic skills. It will really help if you go into politics or law. If you're really strong at picking apart conversations, you'll make a lot of money. The best of luck to you bright individuals and your careers.

But to answer your question. It was never stated how old you had to be in order to join the academy. Naruto didn't have any parents so the best form of daycare would probably be at the academy. Naruto might of been there two years earlier than the genin group that he graduated with. Neji did recognize Naruto and I believe that Kiba did too.