Sex work is a super hot issue recently. From the judicial point of view, that's a big legal issue full of debates. From the political point of view, gender discrimination, population policy, civilian survey, and health-control all mix up. From the economical point of view, sex-market treats human bodies as goods, sex activities as services; the transaction itself is different from other daily-life business. From the educational point of view, it's even harder to put into textbooks or classroom. From the historical point of view, it seems to be men's second nature to consume and buy women's bodies without any feeling of love or long-term relationship. In sex markets, women also buy men's bodies with money, treat them as goods and service. Many kids, including boys and girls, are sold by adults as sex toys, too.
Education might be the key-point here.
Almost every mundane educational system in every country teaches the students to believe that sexual desire is human nature, born with and pursued after until the day one dies. If schools teach kids this way, media also encourages this point of view, most people would believe there's no way out at all. Is that true? Is sexual desire a super drug that nobody could live without? Is it REALLY so addictive that if one can't get it through marriage or love, he/she must buy it with money or force it on others and finally end oneself as a criminal?
Why can't schools teach the students the truth: Sexual desire is a karma-drug; born with and addictive, but it's also possible to get rid of it? We teach kids, "Don't do drugs." Why can't we teach kids, "It's possible to get rid of sexual desire if one knows how?"
There are indeed a lot of ways for people to quit the deadly sex-drug or increase self-control; but no school teaches these lessons to its students openly. Instead, our society has to deal with sex-markets, rapes, sexual abuse, sexual harassment, sex-related crimes...etc., and keeps telling people that's one part of human nature, there's no way out.
There are a lot of ways OUT. People just don't teach them in schools. People never learn those ways in schools, they believe they have to pursue sexual desire until the day they die, some love, some buy, some sell, some commit all kinds of crimes.
As far as I know, only Buddhism teaches these ways openly. Sexual-desire is like a drug; this craving is curable, stoppable, and possible to control. The key-point is not even the body; it depends on how well one could control his/her own mind and become a true master of the body, not a slave of desire.
How about showing people the way OUT from our educational system first? It's much better and fairer than punishing those who never have the chance to learn how to quit or control their desire after they make mistakes.
Solving a big problem from its root is much better.