Because Bungie doesn't want to bring up child birth What's been one of the most reoccurring questions that random's ask in the lore forum? Can Guardians have kids It's a T rated game so no duh we aren't getting any talk about it unless it's super hidden like Shaxx and Mara's night out. So whenever it comes time for the writers to introduce a couple in the lore it's always the same two genders to avoid discussing about sex/children. You then maybe asking: what about Devrim and Hawthorne and that one Ishtar scientist who's name I can never spell? Again, T rated game so no talking about the "animal noises behind closed doors time" I'd actually like to see a straight relationship in Destiny, not because "darn lgbt is taking over the game maaan" but instead I would like to explore the story of a kid raised by Guardians, imagine that