I would like an official explanation as to why it's so rare to see halfbreeds since Eorzea seems so sexually open. With all the races speaking the same language and their bodies have small differences one can say it's logical. What's keeping the races from mixing their genetics? They live together, they speak the same language, they are sexually "open" what's that keeping them from "mixing"? This is mostly a lore thread but it came to me reading this.