> I’ve heard this narrative before but have yet to see it in real life. All the homeschooled kids I’ve met were years ahead of their peers in every respect, especially in social development. They carry themselves like adults

I don't think you're contradicting fossuser's narrative. Being correctly socialized (evaluated as an adult) is being maladjusted (evaluated as a student). By this theory, homeschooled kids are well equipped to interact with the world, but unsuited to interact with college students.