I do have some questions about it. Once your children complete high school, do they get a diploma? Not just a homeschool one, but one from the state? Do they get scholarship opportunities? Are universities accepting them?
In Alabama a diploma is not issued by the state. A diploma is issued by the schoolling body. If you as the parent are the schoolling body, you issue the diploma. For the most part, colleges are very accepting of homeschool students, and many seek out the homeschooled. Most colleges accept based on ACT or SAT scores anyway. DD is 13 and is already attending a major university. She is only taking one class a semester right now, and so far so good. She was accepted based on her ACT scores, at age 11 she scored a 25. She had to have a written recommendation and take an entrance exam, just like any other student.
Regarding safety..
When your children do leave home, and enter the world, how are you going to know whether can handle themselves, if they haven't had any real-life instances, with dangerous experiences? (I know most of your kids do activites with other kids that are safe)
Personally, both of my kids get more real life experiences now that they are homeschooled versus when they sat in a traditional school. I do not believe real life experiences come from sitting in a desk for eight hours a day five days a week. My kids are living in the real world and experiencing more(on average) than their friends who are in traditional school. Both kids are active in the community with volunteer activites, sports, church, co-op classes etc... My kids go to the library, movies, mall, gym, pool and even WDW parks without DH and I. Just because they are homeschooled does not mean they are sheltered or under our thumb 24/7.
The dangerous experiences they would have come in contact with by being in the school systems here are: fellow students with semi-automatic weapons(happened last week less then five miles from my house), police officers in the school having sexual contact with 13 year olds (happened last week as well at another school in my city), elementary aged students with knives (happened a couple of months ago here also)....I have never had any of these experiences in real life, and would hope my kids and I never do. Even if, God forbid, we ever are exposed to such violence I doubt the fact they were homeschooled instead of being in a traditional school would really matter or make a difference in how they would react. Some of my DD friends were ones who were at the school with the semi-automatic weapon. From talking to their parents, I did not get the impression they looked at this experience as an introduction to the real world. They were just thankful no one was hurt.
How do any of us know our kids are ready to handle themselves in the real world? We don't. We raise them to the best of our ability, teaching them to be responsible, independent and smart (educational wise, common sense, and some street smarts). At some point we all have to cut the apron strings, hope for the best, and be there for them when they need us.
This is JMHO and personal experiences. We are all different and have different experiences, so I speak for no one other than myself and my family.