One of the few jobs a gal can make more in a day than many folks do in a week, without any previous qualifications or education. Unlike traditional modeling or acting, where there are cattle calls, auditions, etc, porn is an easier market to break into.
I remember being pretty horny in my 20's, I just didn't know how to monetize it
I'm sure many performers have family issues and fucked up pasts, but that describes about 80% of the folks on this board (including me). I also went to Catholic school for 12 years (high school was all girls), so I can understand the draw toward the "taboo" as well as latent rebellion.
All I have to say is, God bless em all. Power to the pussy. Rowr.