I think our resident lore expert will drop in shortly with all sorts of links and quotes from official sources, but if I remember correctly from those threads in the past, it was established that all races live to roughly the same age (which is usually pretty low due to the dangers of Eorzea), yet races such as Elezen and Lalafell look younger for longer.
I'm sure someone will come along to correct me if I'm wrong soon enough.
I'm sure someone will come along to correct me if I'm wrong soon enough.