It is legal to be a prostitute in Germany. That means if they have an official job they are entitled to certain benefits. What it doesn't mean is that anyone has to be a prostitute. It's only one option. And unlike in many other countries, it is an option within an appropriate legal frame. Not so many countries count prostitution among acceptable jobs.
"While teachers of the middle way, mind only, transcendent wisdom, mantra, and other schools may have their own assertions, the fulfillment of those intentions is the same. There is not a single thing that is not contained within mind."
(Gampopa to Düsum Khyenpa, in "The First Karmapa", KTD Pub, p254)
“If you recognize the world of appearance and existence as the mind, realize the mind itself as empty, and have no grasping at the superiority of your realizations — this is the ultimate view."
(Chegom Dzongpa, in "The Book of Kadam", Wisdom Pub, p609)