As a Huaxia person, regardless of wealth or poverty, nobility or lowliness, man or woman, old or young, you should at least know some military tactics.
Educated people who have attended a few years of school, even if they haven't read "The Art of War by Sun Tzu" or the "Thirty-Six Strategies," they should have read "Romance of the Three Kingdoms" and "Outlaws of the Marsh," and certainly "Journey to the West."
Even if they haven't read the books, it's no big deal, they must have watched TV series or movies, right? Even those elderly who can hardly recognize a few words, who haven't watched TV or movies, must have seen plays or listened to storytelling.