The only people that ultimately responsible for their children's education are the parent, and the children themselves. Whether they home school, or not, ultimately their childrens' education is their responsibility. Lousy schools or teachers is no excuse for children not getting an education. Parents need to look at education as more than just glorified daycare for their kids.
True-I was wondering when the other half of the equation would be mentioned. Parents seem to be too busy to compare what their kids are learning to what they should already know by a certain age.