Their years of service are less plus it depends on what demand they have in the market . Not all get 3 clients a day in an average too.
Anyways , I too agree that it's a great business model, and everybody in the world knows about it, every Mafia in any corner have brothels, prostitution per se is one of the oldest business listed under the head - services. Men are dogs chasing pussies, and in a competitive world , one has to pay a higher price plus the law of land does not legalise it which makes the chase more intense.Even after all your maths and stats, u will still be fucked ( deeply as in pockets) for a fuck. The only survival for you is earn more or get a rich father in law to get pinkier pussies. Can u help that ? I think politicians and Baba's are out of this preview , so u can have that too as a carrier option, where pussies will chase your mouse.