I will say why not?
At least I have no answer to this. I wonder why despite being the oldest profession & an indispensable one prostitution does not command respect. The situation was not like that before. In indra sabha the apsaras did command respect. In moghul era tawayef meant fragrance. Royal courteseans used to command clout & respect & they did not offer sex to all & sundry.
Basically each one had some benefactors to take care of them rest could only see them singing & dancing. Hold it, I am not saying that I will not mind if my daughter/wife joins the profession.
All I am saying is that sex is a natural urge of human being to satisfy which society has devised the institution of marriage where apart from enjoyment of physical intimacy couple can raise a family, pass down the inheritance & form the first or grass root level for the constitution of society & state.
But what about singles or those having huge appetite or are away from family for extended periods? Suppression of sex may give rise to complications. Yes I am speaking for men. Women specially younger once seldom have to pay for sex. I am against any kind of force in flesh trade. So no one should enter this line out of poverty. There should always bean option to opt out & lead life as a couple. which sadly is missing now. As any entry becomes a one way street. Ladies past their prime start managing brothels
Apart from Purchase & sale of girls sharing of earning with cops & criminals & spread of diseases are some real issues.
There may be women for whom morality is no issue & are willing to provide sex if money is good compared to any other vocation. It is being done already by women known as escorts. Call centers, hotels, airline, travel &tourism, modeling & acting. Casting couch is not a foreign word. May be a time will come when sex will be out of closet & prostitution will also get an industry status well regulated & monitored by the state in an orderly manner & writing sex worker as occupation will not raise eye brows just like modeling or acting.
Note I have never visited a brothel or have any intention to do so in future or have any link with sex trade. Prostitutes deserve respect because they are honest & hardworking professionals.
But MUST be out of choice & not by compulsion