Wow reading the comments sure is something, extremists on both sides and nothing in the middle it seems. It's not about being a virign or not, or being teenager, it's about responsibility. Unless she had to literally get away from beeing murdered I don't see why she HAD to choose prostitution. In todays day and age you almost always have a choice ( at least in first world countries).
I worked with teenage moms for a year, they aren't all just innocent kids, they are people like anyone else making stupid decisions despite better judgement. If a women wants to sell herself and it's a conscious decision than that's her choice, and that's ok. Clearly the FMC wasn't adult enough for that choice. At the same time, she made a bad choice and now carries a lot of baggage. Having empathy is definately not wrong, but saying she is a complete, innocent victim is wrong aswell. She will inevitably suffer from the consequences of her actions and to demand a man just put up with her or else he's an incel vrigin bla bla bla is just as stupid as those "used goods" sayers. If you are irresponsible or weak-minded as a person, you suffer the consequences, be it man or women.