I recall watching a documentary on Japanese school children and their attitudes towards baseball, ritualistically crying when they lost a game. A western therapist could easily justify feeding them all meds, but in reality it wasn't particularly unhealthy. I feel like a lot of ADHD is kids being kids and teachers and parents wanting an easy way to deal with it. Lobotomies used to be common less because anyone believe they cured anyone but because they rendered the patient docile. Mental health ends up being as much about societies easy function as it is about helping the patients.
In this personal account, someone who on admission was merely ADHD with possible depression ends up snapping and violently beating someone: https://www.reddit.com/r/AskReddit/comments/1tdoc1/redditers...