My son was diagnosed when he was 6, he is 12 now. He simply will not cope at school without his medication. I don't believe he is addicted to his medication and I don't believe he was not diagnosed correctly. It is a very sweeping statement to say that ADD / ADHD is over diagnosed. However having said that, I am pretty sure that some kids aren't diagnosed correctly. But for those that are, meds are a lifesaver.