How does banning streetwalkers endanger their safety?!?
They might fall out of bed..................
Much as did prohibition against alcohol ushered in increases in violence and criminal acts.
Where prostitution is illegal, if a "john" beats up a prostitute, because she was participating in an illegal act, she can't go to the police to report the crime. In effect, she's being victimized a second time, the first by a violent john, the second by the law itself.
Mark