How do the boys age? Y'know, who's going bald, gray etc?
Noctis: He’s the type to look good for his age up until he reaches 70 and it hits him all at once. Gets a decent amount of wrinkles, but they aren’t too deep. Like Regis, he’d have a full head of hair well into old age.
Prompto: His face gets fuller, and he also gets a few gray hairs. He ends up dyeing them before they get out of control. Prompto also finally decides to change his hair, going for a short side part that is significantly more tame but still familiar.
Gladio: Doesn’t start to gray for a surprisingly long time, but the deep laugh lines and crows feet make up for it. Once those grays start to show Gladio opts for a braided man bun to keep his mane contained.
Ignis: Virtually ageless, save for the salt-and-pepper hair he starts developing in his mid-forties. Once Ignis starts going gray he chooses to not color it and goes for the au naturale™ look. His hair would thin a little, but he wouldn’t go bald.