One of the best resources for a homeschool parent is kids who were homeschooled and are now grown up and hated it. It’s kind of like knowing your personal weaknesses so you can avoid them. It’s always important to hear the negative opinions.
The most common complaint I hear is that kids were sheltered from scientific basics, like evolution, and they blame their parents for keeping them in the dark in the name of religion. That’s a good complaint for me to hear, because I’ll never do that to my kids so it makes me feel safe.
The second most common complaint is that the parents were incompetent at teaching math and science so they let the kids fend for themselves. There’s a good chance that I am guilty of this neglect as well.