States usually regulatorily define homeschooling in ways that make that inconvenient. This does raise the important question of whether external penalties really promote learning or not. I see too much by way of government regulation in all forms of education, including government-permitted homeschooling in most states. That is quite a good question Agreed. After all, we were all taught in public school that that process is good for us.
Many parents have misgivings about college admission for homeschoolers.
This, alas, is solely a matter of misinformation. I was very appalled at a sidebar to a Parents magazine article on homeschooling a few years ago that implied that it is hard for homeschooled kids to get into college, which it is not. Well, yes and no. I've heard of kids starting at every which age, and have met kids who have started at every which age. That is true.