In the Science and Medicine section.of the Los Angeles Times, Denise Gellene wrote an interesting article on November 13, 2007
Hyperactive Children catch up with peers
Here is an article that discusses research on the brain of kids with ADHD and how the cortex develops later.
Besides Dr. Raymond Moore's stance 20 years ago, here is another argument against young kids going to school and the belief that to start behind or late, kids will stay behind.
I love this little article because it begins to question the absurd belief that kids can "fall behind" and that once behind, they have a very difficult time "catching up"