When I married my wife, she had been home schooling the girls (ages 6 & 7). I told her that I was flatout against it and talked her into sending them to a private school till sixth grade then they went to the public highschool (my oldest struggled her first year at "real school" but then caught up just fine). Several other families that went to the same church as my wife were into the home schooling thing also. I am SO HAPPY our girls went to regular school with regular kids! While not the rule, I think a good portion of families make the decision to home school in an attempt to shield their kids from an immoral society. IMO, many of these kids (note: I did not say all) miss out on life lessons and they get a rude awakening when they have to transition to the real world.
My oldest is nearing completion of her first year of college with nearly straight A's and my youngest is nearing graduation from public highschool with a 3.85 GPA and a 27 ACT score. Neither drink or do drugs and neither have tattoos or nose rings. YMMV