firstly, this will define who she marries, whether you like it or not. no bochur from any top yeshiva is going to look at this girl.
secondly, the ruach of the place may be too much for her to handle. im not bashing (this time), im just saying that the change in societal norms from by to sterns can be overwhelming and she might get swept up in things she didnt count on. (or did count on.)