I would have to disagree with the first highlight. Most parents ARE educated and intelligent enough to educate their children. At some point the Parent will reach the limit of their education, forcing to choose between letting someone else continue, or, (and this would do nothing but better the child, parent AND society) learn the subject matter they are having to instruct the child in.
Now, the MAIN problem with most parents and homeschooling, is the second highlight. Most parents do not have the dedication required to raise their kids, let alone educate them. We, as parents, get so wrapped up in the rat race of life, that the kids end up raising themselves, then we wonder why they do stupid, disrespectful, and hurtful things to themselves and to others. I am also guilty of this, have seen it in myself, and am trying to make a change for the better.
average american adult wont have above a 6th grade reading level, and as far as math goes it isnt good either.. I m not sayin that parents cant, if they are dedicated they can but like kdx says many of hte parents fit into two categories! It would take a ton of work the become half as proficient as those who teach at any school I attended