i've seen so many posts talking about percy adopting luke's role as chb's big brother. and while i do love the sentiment of percy being that safe space for all of those demigods, i think it would make an equal amount of sense for annabeth to also adopt that role. she's been at camp since she was seven years old, so not only does she have a deep understand of the chb community, but she can sympathize with all the youngers campers who are struggling to find a family within that community. furthermore, she is a resourceful two-time war veteran with more experience than almost every person in that camp combined. annabeth could also be the older and experience camper for all of the newcomers. period.