Vicki's pajamas are an interesting fashion note. I'm sure that at the foundling home, the girls were issued very plain, very practical sleepwear, and Vicki probably couldn't afford any new clothes for her new job. I've always been struck by the difference between her humble pajamas and Carolyn's lacy, frilly and obviously expensive nightgowns and robes.
[spoiler]But later, as our story progresses, Vicki will graduate to romantic-heroine nightgowns herself.[/spoiler]
Carolyn's weird life: Yeah, I'll bet she's hardly ever left Collinsport and graduated from high school by the seat of her pants, in contrast to the much more studious Vicki. That alone would keep Carolyn really immature, besides her sheer inexperience of the wider world. I'm sure nobody ever thought of sending her to college. Interesting that Elizabeth wants to marry her off seemingly right out of high school, but I guess there aren't that many options even for the daughter of the Mistress of Collinwood.