Some people argue that legalizing it means traffickers don't have to hide as hard; e.g., if you see a working girl you don't get concerned for her safety, you just assume it's fine cause the job is now legal. Or something idk.
Naw the opposite legalized sex work means they can go to the police it protect themselves without going to jail for...being sex workers. Coercion and pimping would plummet like shit