Excerpt of an article in a blog which voices my thoughts on this topic.
Prostitution, the oldest cliché goes, is the oldest profession. If so, it also sets the template for every other profession. Take me, for example: I sell my skills as a writer, limited as they are, to write pieces such as this one. You no doubt have a job that involves selling your skills as well. Many people trade not their intellectual skills but physical labour. Most such trades, made to mutual benefit, are considered respectable. But when a prostitute offers her sexual services, that is somehow considered improper and unethical.
What is even odder is that in most countries, if two consenting adults get together and have sex, the state will not interfere – unless money has changed hands. On one hand, we sanctimoniously frown upon sex; on the other, we frown at commerce. The human race would not exist without either of these two.