I guess its the age we live in, perhaps we're just so sophisticated with our pharmacology that we ignore possible causes as simple as nutrition- which is what I suspect is at the heart of these problems. Pepsi, Cheetoes, and chicken tenders with fries isn't going to help a 5-year old human organism function optimally. Ditto the high-fructose, artifically colored everything else. I blame parents, too, not for lax discipline but for feeding their children crap. They then run to the doctor with fashionable alarm when their kids' bodies don't work right. I have several co-workers like this and they flabberghast me weekly. Their kids are always sick and have a host of problems (including a 14-yr old linebacker wannabe with symptoms of heart disease). Their kids were (are!) raised on McDonalds' and Hamburger Helper.
But of course, the topic of nutrition is more inflammatory than religion and politics combined. Even here, I'm sure I'll get flamed.