I've always enjoyed real work more than schoolwork. My mother will attest to that - she was always concerned about me academically.
The only thing I didn't like as a kid was I was required to do a minimum of 3 hours of schoolwork every day, and there was a tutor on set.
I was dyslexic, I had no understanding of schoolwork whatsoever. I certainly would have failed IQ tests. And it was one of the reasons I left school when I was 15 years old. And if I - if I'm not interested in something, I don't grasp it.
I approached the bulk of my schoolwork as a chore rather than an intellectual adventure.
The best schools tend to have the best teachers, not to mention parents who supervise homework, so there is less need for self-organised learning. But where a child comes from a less supportive home environment, where there are family tensions perhaps, their schoolwork can suffer. They need to be taught to think and study for themselves.