I will even defend a few of the hookers and others out there,
Where I live there is no welfare, if you don't have money you don't eat. There are a few free kitchens and charity for homeless but no food stamps, no free medical care ( in US there is free care, if they just show up at government sponsored hospitals, and have to be treated)
A young lady ( this is a true story and I know her) is married, and has a two year old daughter. Her husband is a farmer, he did not finish high school since he was not able to pass the test to stay in high school. There is no GED programs and no high school program he can do, since at this point he is not allowed to go to high school.
He works on a farm, and the farm gives them a small one bedroom apartment to live in, very small, and not good at all. But it is four walls. This girl also works on the farm but in this country she is not a legal person, her parents had her but already had a child So she can not work in many regular jobs, since she does not have work documents. She has to do day labor at lower wages. To buy paper and documents takes more money than she has.
So she has some work during planting and harvest and husband is lucky to have year round work.
Husband makes about 1200 yuan ( 200 US dollars) a month, and she makes about 1000 yuan a month when she works.
So on average since she only works about 6 months a year they make about 1700 yuan a month or less than 300 US dollars a month.
So she goes to the bigger city during the winter months and works for a massage or call service. Since she is not as pretty ( from hard farm work) and has stretch marks from having a baby she can not work at the highest level places,
But she can make perhaps 1000 or more yuan a week after she pays fees for working.
This way, they can even save up money for the child's education, the child can get into a private grade school, get a tutor, they will have money to send the child to college.
They can break the cycle of poverty for their child.
Is it wrong ? And if so, by whose standards,
The system is wrong perhaps, but she has made a choice based on her situation. When asked, she says it is just sex, and since there is no religious bias and sex is just a natural body function, she sees no real issue in it. Her husband misses her when she is gone, her mother helps raise the baby, but he knows she is not falling in love, and is just working to help support the family.
Right and wrong gets into a moral issue, morality is not universal and has to be judged within the society it is happening in.