And yes, burn out is definitely an issue as well.
Very few children really thrive in the way schools are structured now, those that do are rare or given outside help & instruction that a lot of children just can’t access (that whole classism thing again)
Like, I was a fairly intelligent child, but also had undiagnosed/untreated adhd/mild autism, i was able to actually progress as well as i did because of my intelligence & a fortunate overlap in special interests.