See, there's where Pharma has you by the balls and you show your true colors. Drug your class up into compliant Zombies is far better than ending the killings.
You can't make this shit up, no matter how hard you try.
When was the last time you taught a class of 25 students and have over half diagnosed with ADHD? You can tell when these kids skip their meds because they bounce off the walls and make learning by anyone in the class impossible.
I suppose we could do the idiotic thing and let these kids run the streets until they might just grow out of it. Otherwise, you have 25 kids who don't learn because Little Johnny is swinging from the doorframe and yelling at the top of his lungs!
I have two grandsons that have/had ADHD. The older one grew out of it and no longer takes any medication and he is a stellar student. When the younger one is off his meds, the teacher has to separate him from the class and he learns nothing, so we make sure he takes them every day! When he is on his meds, he is another stellar student. It's Jekyll and Hyde.
Also, just FYI, I taught for 21 years and I have yet to see a Zombie in any classroom, much less my own. I have seen hundreds of kids whose parents let them stay up all night playing Call of Duty and can't keep their eyes open. Maybe that is what you are seeing!