Heh. I guess we can relate in some way. ^_^
Though there's always the important thing to consider: as humans we are social species, and thus NEED socialization outside of the family unit. Otherwise... we tend to go kinda... cookoo. ESPECIALLY true for extroverts. Hence the necessity for extracurricular activities (in your case... wait, to JWs have Sunday Church? 'Cause that's actually a great source for such socialization).
It's also important to remember that sheltering kids can cause MAJOR problems later in life. I, for instance, was not home schooled but still very sheltered. If you want to know just how sheltered I was, and to a degree still am, I didn't know about Jesus until I was in Middle School, and even then my primary introduction to the guy was Jesus Christ Superstar. I knew the name "God", but because I misunderstood something my parents had said, I thought it was a bad word, and thought that it referred to some King of Angels (which is what dead people become when they go to Heaven, i.e., the Sky, which made my conception of God's function much closer to a Sky God form of Hades... take that for what you will). Anyway, one result of being so sheltered is that I'm incredibly timid and have SEVERE social anxiety. I could easily, very easily, develop paranoia or anthropophobia. Doesn't help that I have asperger's syndrome, which makes me incapable of instinctively performing certain social behaviors.
And, of course, with cyberbullying being so widespread, home schooling no longer protects kids from such abuse. You could try limiting their online activities, but... seriously, at this point, I'm not sure how possible that is outside an Amish or Amish-like community. They could easily grow to resent you and thus rebel HARD. As it were, when you make sex evil, you make evil sexy.
I had a neighbor and a friend who both home schooled their children:
The neighbor's daughter was very bored in school and they asked if she could skip a grade and the school said No.
She took her daughter out of school, and she was No longer bored and excelled so much more in her studies that the neighbor's son was then, against his wishes, taken out of school. Within a short time he too adjusted and excelled in his studies. However, the mom did become a Taxi Mom because of taking them to gym/swim classes, art classes, music classes, chess classes, etc.
My friend first took her daughter out of school, and she and other mothers who home schooled took their children as a group to tour museums, zoos, besides other educational places and activities. She too, against her sons wishes, then took him out of school and he adjusted and today he and his wife have a successful business together.
So, from my experience home schooling does Not have to mean isolation or lack of socialization.