Teachers are often over worked and under paid. They have been taught that drugging kids are helpful. They do it out of caring for the child but they do it with misinformation. Too often they learn about drugging kids when they do student teaching so it is a pattern that gets handed down from teacher to teacher. They might see a child stop fiddling or moving around and seem to focus better but because they are not doctors they know nothing about the potential side effects which can include sudden death. Teachers often think a child who is struggling has ADHD instead of considering other underlying problems such as diet, problems in the home, allergies and other medical and educational issues. ESL kids may have the same problem with teachers as the teacher may misconstrue their inability to learn to ADHD instead of not understanding the language.