Some people use the term to avoid invoking the stigma associated with the word "prostitute".
The term "sex worker" was coined in 1978 by sex worker activist Carol Leigh.
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Other sex workers are paid to engage in live sexual performance, such as web cam sex and performers in live sex shows.
Some sex workers perform erotic dances and other acts for an audience (striptease, Go-Go dancing, lap dancing, Neo-burlesque, and peep shows).
In addition, sex trafficking, or forced sex work, is also difficult to quantify due to its underground and covert nature.