As a former ADHD kid myself (as in, former kid, still ADHD), I would at least worry about how the condition might affect their academic, social, and emotional development. I was an unfortunate Gifted Kid and picked up a lot of knowledge from cartoons (back when cartoons had educational value), but that came with the cost that I never learned discipline, and never learned how to study. I know that my consistently falling test scores confused and devastated my parents.

But all that was two decades ago. I hope that ADHD is more understood now and kids don't have to remain undiagnosed and untreated.