Conception Lore

[Kyran-Varlsen]

Fantasy settings tend to by-pass real world biological issues with the mating of separate species just because Dungeons and Dragons + Lord of the Rings had half-elves. Lord of the Rings went in depth on the subject matter and the various "outcomes," but in Dungeons and Dragons it's a "well they are there" sort of thing.

I preferred the Pillars of Eternity route with lore specifying that the races are different species and therefore incompatible for mating purposes. It made sense and it tied up loose ends. This should be the default, and if you're ever going to introduce half-breeds then this should be thought out ahead of time. Especially with a setting that has as much sexual proclivity as Final Fantasy XIV, because I don't remember escorting courtesans to their clients in World of Warcraft. The Elder Scrolls series took care of this issue with a small paper written by a scientist called Notes on Racial Phylogeny. FFXIV should do something similar.