I understand that parents want a right to educate their children at home. Not every parent is actually qualified to do that. I have seen cases where the child came back into the school system and the child was severely lacking in basic skills...and this was a high schooler. The high school tried working with the parents and putting the child in remedial classes but the parent argued that their child was just brilliant...yet, the child could barely add or string a sentence together.
Then there are some parents who know what they are doing and can actually help the student in question succeed.
I had a neighbor because of a medical condition they couldn't go to school. My school actually set it up with actual teachers from the school to run by their house on certain days to go over material to help the student succeed. Why because the school understood that the parents did not want to actually homeschool their child (my school system was excellent and individual professors actually knew the name of my high school).
I've come in contact with people my own age that have been home schooled and I can't talk with them because they have zero social skills... One way to look at schools is a way of behaving/interacting with your peers and learning those social skills. Another is that the child actually receives an education at the same time.
I'm actually certified in Mass to teach History 5-12 and Middle School Math... btw those teacher exams are ridiculously tough... But on the upside, pretty much 48 out of the 50 accept the Mass exams because they are extremely tough to pass. So, if nothing else, I have that going for me! YAY! pray I get a job for next year...at a decent school (not one where I would have to worry about being shot for teaching).