Thought that myself until it seemed some are, some aren't. Those saying it isn't seen in older children i don't see as thinking in terms of evolution. Whatever, either way, Musk in saying it is the case that c-sections create bigger brains when it isn't determined conclusively or not, misleading people.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”