It sounds like you're a GREAT parent! Obviously you provided your son with a fabulous education and I'm glad to hear he's doing so well. I too have several friends who home school and are amazing educators - I truly marvel at their abilities and their children are miles ahead of where they would be in the public system.
For better or worse I have spent my professional career working with various types of dysfunctional families and my perspective is influenced by my experiences. Mother's who are so illiterate they can't spell their child's first name or who are so intellectually impaired they don't know their child's birthday. And those aren't the parents who lost custody of their kids due to horrific abuse or neglect.
I'm guessing the vast majority of those women were 'educated' in the public school system. This is why the tales of those few 'homeschooling' parents who neglect their kids' educations are so annoying. The numbers of those parents are SO small compared to the ones who truly care about their children and want the best education for them, no matter what it takes.