Among patients and health care personnel, microorganisms are spread to others through four common routes of transmission: contact (direct and indirect), respiratory droplets, airborne spread, and common vehicle.
“Most girls get their first period when they're between 10 and 15 years old. The average age is 12, but every girl's body has its own schedule. Although there's no one right age for a girl to get her period, there are some clues that it will start soon.”
That is from kidshealth.org
It can be true or false most of the time people get into sex trafficking because they have been forced to do that stuff before like get raped or sexually a abused by someone you love and trust or some stranger you didn’t knows at all at the time. Depends on the circumstances but more than likely it is going to be that it had been done to them before so they are doing it.