Yup, and it certainly would have led to some interesting paths about his bitterness towards Olympus. Maybe you could join up with Kronos and Luke for a good time.
Wouldn't you like to know? In fact, one might say that your reincarnation has made it so that you don't notice the other aspects of the concept of
Growth.
In Terms of the age of Canon Characters
- Luke Castellan - 4 years your senior
- Thalia Grace - 2 years your senior (before tree shenanigans)
- Annabeth Chase and Percy Jackson - 3 years your junior
Characterizing Demeter will certainly be difficult and if I had to say right now I'd say that she'd be both. In general, she's a kind and gentle goddess, but there's an edge to her. She's the second child of Kronos and Rhea and she wielded a golden sword in the Titanomachy, so there's no doubt she's a great warrior. The fact that she created
Winter because she was mad at Hades (and Zeus) for running off with her daughter suggests she has a temper, though it is hard to make her mad. Additionally, it suggests (at least my interpretation) that she has a protective streak.