I agree with most things you said outside the chest thing. Every time someone uses that against her it's always retorting it'll grow bigger as she gets older. So she (he?) is salty about it.I'd say that those that do not worry about their new lives / bodies, because of previous experiences are odder than those that do.
"The mind is the plaything of the body." and very few comic authors get that to my annoyance.
Also, I don't think she's worried about her chest size, so much as she doesn't want to be arbitrarily devalued as a person.