Also there are some kids with adhd who legitimately do well in school, because adhd is different for everyone and if a kid is interested in the topics being taught in school then they'll have a much easier time doing well. I wasn't one of those kids myself, I just scraped by, but I've known kids like that. It's just a really stupid metric. And like, just because an adhd kid is doing well in school that doesn't mean their adhd doesn't affect them in other aspects of their life, so it's not like they don't still benefit from a diagnosis or treatment.