In class, throughout those first weeks, a number of the men showed with their body language that they thought the whole exercise was bullshit, a waste of their time.

In plenty of cities and counties around the country, men busted for buying sex get sent to a class known as “john school”—usually just a scared-straight afternoon with lectures about STDs and jail time and the harms of prostitution.To Peter, decriminalizing sex work won't strip it of its danger and its tendency toward exploitation.