I think one of the best things about being an adult is the freedom to do what you want. Kids don't have that freedom to make those same choices. And for kids who hate school, it can be miserable to have to go every day.
Kids with learning disabilities tend to especially dislike school. And who can blame them? Imagine what it must feel like to not understand your work and to feel like you are the only one in the ass who just doesn't get it.
And kids with learning disabilities often get treated differently. They get put into special classrooms and then we wonder why they feel isolated from their peers. Or we tell them "You can do it!" when they aren't even sure what hte assignment is. But many of them don't want to risk the embarrassment of asking a question or admitting they are lost.
This can lead to kids acting out in class. After all, to save face they would rather be the class clown or labelled "bad" rather than "stupid." So suddenly, they get treated like a discipline problemthese kids don't like school.
That is why I really like the book Nowhere to Hide by Jerome Schultz. This book describes what makes school difficult for kids with learning disabilities and how parents can help them.