Diff'rent strokes for diff'rent folks.
My son spent his first 6 years in 4 schools in 2 separate school systems.
1st 3 years in the British system, in an excellent school where he did fairly well. (Brits are not particularly interested in 'grades' - their children don't #graduate' from anything until they've been to university.)
2nd 2 years in a small DoDDs (Department of Defense Dependents' school) where the class sizes were ideal, but where there was far too much emphasis placed on 'ADHD' and too little on 'bad behaviour'.
Next year in another DoDDS school which had 4 (yes FOUR classes in his grade. Each with 40 children. He was just another number.
Then I put him back into the British system.
He didn't have 'ADHD' or any other 'amazing new discovery'. He was a boy and from time to time he misbehaved (like many millions of boys had done before him.)
I didn't allow any school to dope him (I wasn't planning on training him to be a racing cyclist
) and things went pretty well.
Until he was about 13.
When he was 13, I was suddenly stricken with some unknown disease which caused me to change from 'the fount of wisdom who knows everything, takes me everywhere, the guy I can always rely on' into 'a retard who really shouldn't be allowed out on his own.'
I understand this had something to do with 'hormones' (but I thought I'd gotten over major hormonal problems when I stopped getting zits.)
It wasn't a terminal disease. I made a miraculous recovery about 8 years later and my son is now a very good friend.
You too will probably by infected by this strange disease, but if you sit on your hands (and try to keep your lips zipped) you will probably recover.
If it's any consolation, you can remember what my mother said to me when I was much younger:
"When you grow up, my son, I hope you have a son who is just like you."