Oh, yes, absolutely it still happens. Every year.
It's not like there are hundreds - or even a hundred - girls who do this, but there are always a few. I know of one girl who was dropped from recruitment at 3 different schools. She did stay in school that semester, but transferred the next. She never did pledge anywhere. That's just it - word gets around.
I hear every year of 2 or 3 or 4 who drop out, transfer, or in some way let their college experience be dictated by sorority.
Sometimes mama insists...but I really think that's rare. DD thinks "I just can't hold my head up" and skedaddles - never realizing it's a BIG campus and they're not going to be seeing the same high school friends every day. Usually they COULD have pledged a sorority but didn't want the sorority they got.
This is why,
many years ago at a certain SEC school I'm familiar with, most of the big ones stopped taking all affiliates. These young ladies, however, do wear their paraphernalia around campus. As they have every right to do.