In regards to aging, it's been suggested that Hyur have -slightly- longer life expectancy than real-world humans (a bit over a hundred years for a Hyur, while just under a hundred years for a human). Beyond that, the ONLY race we know that has a life expectancy that differs from a Hyur is Elezen -- lore panel says they live longer, but there was no age given. Quacky (I never remember his name...) the Lalafell in the BLM questline is well over a hundred years old, but has been stated to be the exception for a Lala's life expectancy.
Until otherwise stated by a Dev, it's probably safest to assume that Roegadyns age similarly to Hyur.
EDIT:
Oh, and since XIV uses the same rotation of weekdays that XI does, the order goes:
Firesday (Monday's equivalent)
Earthsday
Watersday
Windsday (Wednesday's equivalent)
Iceday
Lightningsday (Friday's equivalent)
Lightsday  (Saturday's equivalent)
Darksday  (Sunday's equivalent)
Until otherwise stated by a Dev, it's probably safest to assume that Roegadyns age similarly to Hyur.
EDIT:
Oh, and since XIV uses the same rotation of weekdays that XI does, the order goes:
Firesday (Monday's equivalent)
Earthsday
Watersday
Windsday (Wednesday's equivalent)
Iceday
Lightningsday (Friday's equivalent)
Lightsday  (Saturday's equivalent)
Darksday  (Sunday's equivalent)
