Yet the evidence is overwhelming that, in the United States, prostitution is only very rarely just another career choice. Studies suggest that up to two-thirds of prostitutes have been sexually abused as girls, a majority have drug dependencies or mental illnesses, one-third have been threatened with death by pimps, and almost half have attempted suicide.

Melissa Farley, a psychologist who has written extensively about the subject, says that girls typically become prostitutes at age 13 or 14. She conducted a study finding that 89 percent of prostitutes urgently wanted to escape the work, and that two-thirds have post-traumatic stress disorder — not a problem for even the most frustrated burger-flipper.

The mortality data for prostitutes is staggering. The American Journal of Epidemiology published a meticulous study finding that the “workplace homicide rate for prostitutes” is 51 times that of the next most dangerous occupation for women, working in a liquor store. The average age of death of the prostitutes in the study was 34.