“many if most I have seen have no difficulty concentrating on what they want to concentrate on.”
That’s been my observation, too. Seemed like a method to manipulate parents, teachers, co-workers, etc., into getting a pass on not doing what they didn’t want to do. When they were doing what they wanted to do, focus and interest was fine.
When we were kids, if we had pulled an “I have ADHD so I must be coddled”, we’d have been cured within five minutes.
A private Christian school teacher recommended we drug one of our kids. Turns out he only needed a cup of coffee in the morning. He is now in his second year of college and doing fine.
Drugging young kids for this is child abuse. Let them decide when they are 18.