The traditional family with one wage-earner and one stay-at-home person is not that common any more. Now it's 2 wage earners, or 1 wage earner and an empty seat. Fix that, and maybe you can increase home-schooling.
We could always try the multi-party family units, a la Robert Heinlein. Then you'd have multiple husbands and wives to share the duties of home schooling. I dare say the kids might even come out better if they had the tutelage of several points of view and experience.
I already have one wife. I haven't suggested adding more on to the tree as of yet; we haven't got kids to educate at home. I suppose that there's a good argument here to add-a-wife: procreation!
Feh. I need my caffiene.