I have expressed my concerns for home schooling earlier on this site (see). In that treatment I was concerned about the reasons for home schooling, which often revolved around religious practices, and the lack of what I feel is the most important skill learned in grammar school: socialization. My post was triggered by the news of the death of an abused child that was being home schooled; the sadistic parents were able to conceal the abuse which would probably been noticed by the school administration if only the child want to school.
Of course I heard many responses about how that was an isolated aberration and how home schooling was far superior to public education. I saw lots of evidence that this was true and casually wondered why it seemed so.