Expense. We looked into it when the kids were little but concluded we would need to hire at least one full time teacher (wife and I both work) and therefore wou

Expense. We looked into it when the kids were little but concluded we would need to hire at least one full time teacher (wife and I both work) and therefore would need to aggregate with several other families. At that point you're starting a school and we observed that we were already paying (handsomely) for the public school. That said we did supplement our kids education at the elementary level with a once-a-week science class from a retired teacher we know, and I spent quite a bit of time teaching them Mathematics "properly" up through 9th grade. I made use of various tools for that, including the same problem setting software the professional teachers used, and of course Messrs Kahn and 3Blue.