School was exactly the same for me. I dropped out as soon as I could because a rigid, structured institution like a school can be hell on a child or teenager with ADHD.

I never received treatment as a child either. I'm sure medications where available, and therapy has always been a thing, but my mother never consulted with doctors about it. Me being fidgety and hyper was just a thing. As I grew up, it started affecting every aspect of my life, from switching jobs and girlfriends constantly to risky decisions that could have left me changed forever... I can definitely relate to the ability to burn bridges and leave ideas or people in the past...

My four year old son certainly exhibits signs, though I haven't gotten him diagnosed. I already plan to homeschool, but if his symptoms worsen, I wouldn't think of putting him a "regular" school system...