The conversation between human and AI assistant.
Is it true that babies are born without kneecaps? If so, why?
Why do babies develop kneecaps later than other bones?
It's because the cartilage that forms in the kneecap area of a baby's leg needs to be strong enough to withstand the forces of crawling and walking. Waiting until the child is a little older allows the cartilage to mature and become stronger before it ossifies into bone.