
I'm not an immigrant, not according to the textbook definition anyway, but my dad said the same thing about me and my sister to my mom when we were little: "one for a doctor, the other for a lawyer." Although I give him credit for not limiting us based on our gender, but the joke's on him, because now I'm making a living teaching music and my sister doing art. Oh, well. But, yeah, we did struggle bit as a family because he wanted us to have jobs that will give security. He didn't think music or art would do that. (He was more severe on art, ergo, my sister.) It took a long time but he finally agreed.

What Casey desires the most is the carefree, relaxed attitude towards life her rich friends have because they don't have anything to worry about. All her decisions stem from her worries - worries about education, job, credit card debt, living costs, etc. A lot of her stress and pressure comes from them and this is where her entitlement comes in to compensate for her worries. "I know and have good taste for finer things and in fact I deserve them just as much as Ella or Virginia. Ergo, ____" So she splurges on things and good times and what not, which makes this cycle that never breaks.
So, no, I really don't think she'll be a different person. She'll just be like all her rich friends that she knows mainly on the outside. Conversely, I think this is on which the whole book hinges. Why would we want to know about Casey's story, who has an expensive taste and lives a life that suits that taste? The Casey we see in the story makes that whole lot more interesting. A poor, working-class-borne girl with an expensive taste.