Is it really true that anything that involves financial transaction, whether legal or illegal is worthy of the title "industry"?
While no doubt some can and, indeed, do make the case that there are the pseudo-components of industry...work venues, employees, employers, revenue, payments, clients, sales, purchases, advertising...etc....there is the question about whether sexual relationships should indeed be industrialised.
A case needs to be made for the idea of 'industry' being something that is socially beneficial.
This is more than an industrial question. There are pretty significant ethical issues. Do we feel comfortable for example talking about the drug industry, the burglary industry, the pornography industry...or (God help us) the paedophile industry.
All illegal, all profitable...but hardly socially beneficial.
This is not to say that prostitutes should not be protected. But my concern is that prostitutes should not be seeking "satisfactory working conditions", they should be seeking to be freed from prostitution.
Although those involved in the trade often declare that they are doing it by choice, and that it has no effect on them or anyone else. Both of those things would have to be seriously challenged.
Even if we were to assume that a person can be a prostitute and not be affected by it, the social consequences of allowing sexual relationships to become yet another commodity for our voracious appetites for anything would seem to me to be undesirable.
Do we really want to live in a society in which peoples' most intimate affections have actually become commodities that can be bought or sold? Is that good for us, good for them...and more importantly...good for our children?
So, let's try to support prostitutes by helping them to get out of the trade. This should be done by proper social and financial support and not by suggesting that industrial regulation would some how suffice.