It really depends on what you think about education. I don't think we should force every child to go to school. If you take away the choice, you are automatically downgrading the value of the time spent there. I also disagree with the post that very few people are curious enough to learn on their own. I believe very strongly that every child is curious and motivated to learn, though many of them cease to be motivated when we start forcing them to go to school, forcing them to learn certain subjects in certain ways and at certain times rather than being allowed to focus on what they want and what they are interested in.
Children all learn to walk and to talk and to eat and do all kinds of complex things to make sense of their worlds. Then they go to school and suddenly we say some are motivated and some aren't. Could it be just that school only appeals to certain kinds of kids? Could it be that school and learning are two different things that sometimes intersect but not always?
School today is designed to sort kids into the haves and have nots and to then designate certain kids as worthy for certain things based on arbitrary standards or considerations. Forcing everyone to go to them to be sorted, etc., could be a good or bad thing depending on how you look at it.
I agree that ignorance is a terrible thing, but school is not the only solution to that problem nor is it always the best, and sometimes it may in fact encourage ignorance by stifling curiosity, destroying children's desire to read and think outside the box, and telling them that only certain things are "worth" learning.