Eltab
Lord of the Hidden Layer
I haven't read Mordenkainen yet to absorb all the details, but my rough-sketch idea:We also don't know the details - are elven children born one gender, or agendered? Is the ability to switch always there, or only appears at puberty?
Heck, are there secondary sexual characteristics at all? Or cultural/behavioral ones? Can humans even tell a "currently male" from a "currently female" elf without close examination?
This really pushes forward the ideas of gender and orientation fluidity... but it's fundamentally different from the human experience of many.
- Elven children are born androgynous: neither sex. And they don't have interest, either. That comes at puberty.
- At puberty, an elven child becomes a hermaphrodite: both anatomies develop. This is a biological trigger. Which is dominant, may be a cultural influence. Or a personal influence ('I like mom more than dad so I became female also.')
- Sort of like Vulcan culture, certain rituals can trigger the change back and forth. An individual decides to change because -reason-, or the community decides that more individuals of a particular sex are needed, and when the ritual is complete both the individual and the community accept that individual as being the sex the ritual is intended to create. Meantime, the anatomy changes to suit.
- Not sure how to handle "a draft" situation, but unwilling participants likely will result in the ritual backfiring physically and culturally, so everybody involved has motive to avoid this situation ahead of time.
- This does have the benefit that you will not see Elves who are unhappy with their essential nature because of their mind and body disagreeing as to what sex they are / should be.
- After a certain age, the Elf's body naturally becomes androgynous (or hermaphroditic) again; physically the reproductive tract is shutting down for permanent. This can be induced or delayed by other rituals.
- This doesn't get into how Elves reproduce - eggs, young in a pouch, pregnant, other. So I guess the D&D fanbase will just have to get themselves out and learn about potential IRL models, earning themselves a +1 INT from their Downtime: Study (Sage, biology).