Today, a growing consensus around the world claims the sex trade perpetuates male violence against women, and so customers should be held as criminals.
On the contrary, it’s decriminalizing prostitution that could make women—in and outside the sex industry—safer.
Pimping, procuring, and operating a brothel remain illegal.
The criminalisation of the purchase of sex, but not the selling of one's own body for sex, was unique when first enacted in Sweden in 1999, but since then, Norway and Iceland have adopted similar legislation, both in 2009, followed by Canada in 2014, Northern Ireland in 2015, and France in 2016.
Spain's new sex position has been filled by Galician senator and demographics expert Edelmira Barreira who, with Prime Minister Mariano Rajoy, will draft a document for "a national strategy of demographic imbalances".
So, it's not necessarily a lights-down-sexy answer to get this problem licked as yet.
As with Spain and other developed countries, Sweden's fertility rate has been gradually falling for the past several decades, with Overtornea's population dropping from 5,229 in 2005 to 4,711 10 years later.
However, under the influence of the church, sexual acts outside of marriage was criminalized for both sexes, which also affected prostitutes.
Not only is the birth rate for Spanish women aged 18 to 49 years just 1.3 children — well below the European Union level of 1.58 — but for the first time last year there were fewer births than deaths.
In fact, Spain's birth rate has fallen by 18 per cent since 2008, while the number of childless couples has tripled from 1.5 to 4.4 million between 19.
This modern debate has roots in Victorian England, which branded prostitutes as wicked, depraved and a public nuisance.
Yet a shift in social thought throughout the era introduced the prostitute as a victim, often lured or forced into sexual slavery by immoral men.