Random thought of the day. Granny was still alive in the Real or Not Real? Nobody Knows wish!world. I mean it’s not real but is somehow persisting which makes it look kinda real. Anyway, Marco/Geppetto was dead so clearly the writers were aware about the aging process but Granny looked the same.
Answer – werewolf!
I mean Granny never had a red cloak, we only have her word that she doesn’t change anymore. What if she’s like Colonel Ives and stays young and healthy because on full moons she feeds.
Either that or Granny is Storybrooke’s answer to Professor McGonagall and when death came for her, Granny looked down her glasses, grabbed her crossbow and death apologized and left. It’s a theory 🙂