i Dont get it, in real life or in the future of the movie ?

I'd imagine so, or at least out of these characters she would probably have the roughest life. She can't think for herself and she has no individuality, and while that may help you "fit in" when you're a school kid, that sort of thing in the real world just means you're boring and too dependent on others. She needs to become her own person if she is to have any success in her adult life.