My kids have always went to public schools so I can't really relate to the moms who have home-schooled. However, my brother-in-law and his wife are going through a really ugly divorce right now, especially regarding custody of their daughter.
Her mother has home-schooled her for the past four years. The daughter is now 16 years old. Once the divorce proceedings started and my brother-in-law's attorney started digging up information, they found some very shocking information. For the past year, his soon-to-be ex-wife had not turned in any paperwork that is necessary when you home-school your child.
The attorney brought the daughter in and talked to her. She said that her mother didn't do any schooling during the last year and that her mother had asked her to lie for her. Needless to say, the ex-wife is in a lot of trouble but my niece lost a whole year of education. I think there should definitely be a better system of accountability for home-schooling. I am not saying that it is a bad thing but I don't know how her mother got away with doing nothing and nobody caught that.