Comment by simiones

Whether school is a net benefit (that can stand to be improved) or a net detriment (a system that needs to be uprooted and upended entirely) depends significantly on that "some significant percentage".

If the percentage is 10% of children suffering through school, that's a horrendous number, but still leaves school as an overall positive experience for the vast majority, even though significant work needs to be put it to fix its problems.

If the percentage is 50% of children suffering, then it's a crapshoot if your child will benefit or be deeply disturbed by school, and the whole system needs to be torn down and rebuilt from scratch.

One anecdotal experience can't help one decide which of these is the right approach. I'd venture a guess that, since most people are not clamoring for fundamental school system reforms, the experience of most voting adults has been largely positive or at least neutral in school.