Have you never watched TV and movies?! Only a man can carve a Thanksgiving turkey. Had they not specified middle aged men, I might have thought about a young woman cutting a turkey, and that would be such a ridiculous concept that I would have TOTALLY missed the directors cut punchline! No, no, the joke is FAR more effective when it reinforces a stereotype that pretty much only exists in fiction.

EDIT: Guess the sarcasm wasn’t thick enough.