In our house, it'll be Japanse they learn to curse in. Unfortunately that language does not have very strong curse words.
Honestly, and I'm sure I sound naive, I didn't know what pot smelled like until I was 21 and deduced that that was what the neighbor's apartment must be smelling of. I didn't drink until I was legal age (well, a couple half glasses of wine at home in the six months prior as my mom taught me some about wine). My husband was the first (and of course only) man I kissed let alone slept with and I didn't even get married until I was 23 so how's that for undersocialized?
I work in a field that has a higher than average, I believe, number of homeschooling parents. Engineer types seem to be more likely than the usual to homeschool. Probably because A. they can support a family and B. they remember being picked on, not taught anything, and generally loathing school. Regardless it's nice for the reaction to "I (am) was homeschooled" to have gone in my experience from "Is that legal" to "my crazy cousin does that" to "A family at church does that" to "Yeah, we're doing that".
These commandments that I give you today are to be upon your hearts. Impress them on your children. Talk about them when you sit at home and when you walk along the road, when you lie down and when you get up. (NIV)
Consequently, Sproul would say that our purpose as Christian homeschoolers is not to produce a world-class scholar, nor an overachieving athlete, but a Godly person.
That we can do that and in the process produce children who, academically, stand head-and-shoulders above the majority of their public-schooled counterparts is a happy fringe benefit.