It's the different climate in the country with regard to prostitution. In Sweden, you see that trafficking has decreased dramatically, particularly from foreign jurisdictions. They also say that in Sweden there is nothing to back up the assertion that taking it indoors makes it safer, and this suggestion that adult prostitutes will hire bodyguards and have chauffeurs is a side of prostitution I haven't seen.
On May 10th, 2018. See this statement in context.