Experience Tumblr like never before
THIS IS LITERALLY WHAT I'VE BEEN SAYING! THANK YOU FOR LAYING IT OUT!!
Hey hey hey, remember how Drew (and Lacy) was mentioned as going to the same school as Sadie in The Serpent's Shadow? So it's like. Implied the two of them are a similar age, especially since they clearly interact plenty, with Sadie knowing her full name and such? I dunno about you, but I never interacted much with kids out of my age range at school, so it's basically implied they're close in age — when Sadie is thirteen (Lacy being said to be a year younger than her).
So, like. What if Drew's. Younger than Piper, actually? By like. A year or so, so she'd be fourteen, rather than the popularly accepted 16/17. I know The Lost Hero tries to say the oldest demigod at the cabin automatically becomes counselor unless challenged by someone who's been on more quests, but Annabeth was counselor at twelve, so I call bullshit and accept the demigod-that's-been-at-camp-the-longest rule as the one automatically takes the role when needed (also, there's nothing saying fourteen wouldn't be the oldest in the cabin post-war, anyways). So Drew could easily not be the oldest in the cabin, and still have to deal with suddenly being head of her family, on top of her older sister being revealed as a traitor, the grief of losing several siblings and friends, and the PTSD that comes with being a soldier.
I just think that'd be very fun for her <3
(And then just. Imagine Piper realizing that maybe she's the oldest, and her younger siblings took part in a war (that was arguably worse than the Giant War Piper was a part of), and maybe that's why Drew's a bit too much of a bitch sometimes, rather than just Girly Girls being automatically evil.)