Gender locked race?

[Enla]

Yeah, that's something that gets hit on a lot that a lot of players seem to discard. There's only one Warrior of Light in the story. Other player characters you pick up are just adventurers and are even referred to as such. Final Fantasy sticks to their established lore.

There's one Chosen of Hydaelyn, there's many Warriors of Light according to ARR. They somewhat dropped/retconned the plotpoint in subsequent expansions, but they're pretty specific about there being multiple people who made the time leap from Carteanu at the start of the MSQ.