Internationally governments widened the definition of trafficking to make more of it.
That way they can tick more boxes when they arrest people for sex cases.
Even cases with mature, consenting, women can be trafficking. I remember a couple of Swedish guys got life in jail in the Philippines for running a web cam studio with mature, consenting, women. It was counted as trafficking. The cops didn't watch the women closely, and some of those who they had "rescued" ran away home to avoid having their time wasted in a court case.