Those who've studied it reckon New Zealand only works (insofar as it works - and there's considerable evidence to suggest the picture is not as rosy as the pro-prostitution lobby would have us belief) because of its geographical isolation. In a country like Germany, a much better social and geographical analogue for the UK, the results of complete legalisation have been disasterous - increased trafficking, mega brothels (where despite the arguments of the pro lobby that this would lead to health care and proper employment contracts, women in fact have none of these protections and are forced to work as "independent contractors"), pop-up brothels on the edges of motorway restplatz where women have sex for 15 euros, and street prostitution still runs rampant (remember, the whole point was supposedly to make women safer), except that the price has now dropped to less than the cost of a big mac.
It's inherent in the nature of capitalism - commodify something and you drive down prices, and people get exploited in the production process. Only now the thing being commodified is women's bodies, and the prices have dropped to a couple of euros for servicing a man's cock on your knees in the gutter. Would you want to do it, Dadwashere? (And no, you're not allowed the get out clause of "but I'm straight" - do you honestly think prostitutes are sexually attracted to their punters?)
You pop up on every thread like this to tell us how wrong we are. And you claim to be a father. So that means you either have sons you're bringing up to think that prostitution is perfectly acceptable, or daughters you're bringing up to think that their bodies are nothing more than commodities to be used by men. I find your continued presence on these threads more than a little bit creepy to be honest.