The current structure of RM (and Ancestry, ...) identifies Male or Female as an attribute of the Fact "Sex". It comes to my thought that given all the discussions of sex, and sex identity, that a more public statement of "Gender" might be a better wording. Even when I was in college (many years ago), when asked the question "Sex?" a common response was "yes, are you available?" But even more importantly, identifying Gender opens a a list of alternative facts such as "Gender Chosen as", "Gender Altered to", (both of which have valid date fields which Birth Gender does not need.
Thoughts to ponder. I can work with the current Fact descriptions, but was stricken with the need to raise the question.
Charles (Gender: Male at birth, still considering that correct)