I myself would be far to scared to do it with my dc's as I'd be needing to reach for the
most weekends of having to teach them curricular that I was shit at at school.
Why does it appeal to so many people ? There are a few children in the next village (live in a rural location) who are HE but only because their mother doesn't trust other adults with her children. I know this an extreme case but the only one I know personally.
How would you know your child is learning all the correct syllabus for different subjects ?