Until with porn a girl can get in a month with few days work the amount of money can get a teacher in a year working 8 hours 20 days/ month, i don't think is so bad as you want to describe it. By the other hand probably from those people with diploma the same only 10% can be succesful theese days.
Probably those models are finishing with porn after 5 years, are doing it cuz they have other better opportunities, and probably some of them get tired about the hipocrits from around, or they fall in love with someone, they want to have family, etc. For sure there are alot which can't threat the situation and they get addicted of easy money, and they jump into prostitution as you say. It's verry sad, but believe me some of this young ladies they are prostitutes even before we meet them, hiding they past from us, or some others are pushed into prostitution by they parents want to take care of them, want to control they're life even if they're not anymore children. Until an 18 y girl want to have a nice life, want to wear nice clothes she see everyday on other girls, and she don't have the chance cuz she get 20euros/ week from her parents in a good case, which is enough to pay the cab from home to the city center and back once, I'm afraid this girl will suck the cabdriver next day to can get home for gratis from the club, where she was sucking already the bodyguard to get in for free+ one waiter for few free drinks. Just think about, which solution is better for that girl, cuz she want to have the same good life as her friends have...and let me not continue with this ideea, cuz i become verry sad, remembering all this things.
If you heard just about Silvia Lauren a beautiful Hungarian model
http://www.eurobabeindex.com/sbandoindex/sharone.html , as you can see she's 37 y.old, looking as to be a 25 y. lady, all natural and beautiful having an almost adult child, and working in the adult biz. since 19 years, also theese days. And there are more examples, but do yourself some researches on this, it is your problem, you don'tknow a fuck about this biz. and probably about life, cuz you don't have enough time to look around, probably waking up every morning, and having an hour a day to relax in front of your computer. You know only what the media push into your brain, and you liv in a dreamworld. Sorry to tell you like this, but you're not competent to talk about this industry. I hope you don't have children, cuz I'm more and more afraid about the next generation is growing up theese days. 2-3 days ago was on the news a story about some young people doing sex in the center of Budapest daytime in a park in front of dozens of pedestrians and children .
http://borsonline.hu/news.php?op&hid=32190 You know why they did it? Let me guess: I think the sex make the people to be happy for awhile, even if they must do it in front of others, but maybe they just wanted to atract the attention on themselve. I think this is better than other young people are doing, drinking alcool, or taking drugs, or even climbing on bridges wanting to jump down and suicide....cuz they don't have other choices to become happy...
About why Sophie isn't doing porn, I think cuz she have enough good sex in her life, she's living a good life, without money problems helping Pierre with her support on every moment of his life. Tania how I know she's married with a rich guy, having her business too. The daughter of Pierre is a sweet lady, verry intelligent, writing books, cuz not everybody have to follow the parents, if I am not wrong on my conception. But I think Pierre can answer you better this last questions.
And 1 more thing just to make you thinking if you have a child... I meet every week young girls searching for work. I mean girls are coming and asking me for to help them into get money the easiest way possible.They're able to fuck for money, telling me stories how they were threated by normal business people they were meet before to can have a normal job. One of them told me she was working at the McDonalds, where after audition she must fuck with the ugly fat boss, to can have the job, and to can earn in a month what a model is paid for only one scene in the adult biz. Other girl is student and is fucking with the owner of the appartment twice a week to can have where to liv in Budapest. But already she fucked with the owner's friends for money, to can finish her studies. This one told me she will never fuck in front of the camera, cuz her parents will kill her if they find out. More stories about will be in my book when I will end with it, I hope you'll buy it
Until this spended time, she've did some works , but only with great guys are respecting the rules of the life, and letting to be everything up to the person involved into it 
and from now she"s started, and she want to get it in her ass 
