There is, or at least was, at least one place catering to your friend’s tastes: https://urnotalone.com/male-maids-serve-it-up-at-japans-first-cross-dressing-maid-cafe/
Edit: More recent article: https://www.tokyoweekender.com/food-and-drink/restaurants-and-bars/boys-magically-become-girls-at-the-maho-ni-kakerarete-crossdressing-bar/
Couldn’t you just add a comment that says that if the variable is false, then the person is sitting?
Or if the programming language supports it, you could add a getter called is_person_sitting that returns !is_person_standing.