Of course, schooling isn't the only source of youth-youth contact. So home schooling doesn't preclude gaining such social skills (childish as they are.) In fact, a kid isolated from other kids would probably be pretty lonely. So that would be bad.
I don't recommend home schooling for every family, for every parent, for every student. First of all it is highly inefficient. But if it works, they should go for it.
LOL! Seriously, I laughed so hard I nearly fell out of my chair. My main reason for homeschooling is because it is so much more efficient! Really, in just a couple (maybe 3 at the most) hours, my son is DONE with school each day, completed all required lessons, and off being a kid, playing at the park with his buddies, going to chess club, or just goofing off with his kid brother.
In the meantime, our neighbor's boy, who is the same age, leaves for school at 8am, gets in at 4pm and still has work to complete at home in the evening after supper! How inefficient is that? They have the kid for 8 hours and they still can't get him done before he has to come home?
When people ask me why I homeschool, they expect I do it for religious or political reasons. I do it because I think public school is a horrendous waste of time. You can ask just about any teacher and they'll tell you that a great part of their time is dealing with problems and not teaching. It's why even private school isn't an option for us. If they think can keep my kid for 8 hours and still not teach him what he needs to know before he comes home, just give him to me...I'll do it. A kid ought to be able to be a kid, not sit in a desk for 8 hours a day, 9 months out of the year.