My advice is not to judge others.
Just because a women is in a job that most of us would consider degrading and wrong, it does not mean she does not have the right to be a human being. Sex workers must be respected as human beings, too. Respect is something everyone deserves.
Prostitution is hated in our society and they are often neglected in the society poverty is the main reason for this. Lacking adequate food these poor women are also employed in prostitution as they have no other job if they are properly monitored, they can be prevented if there are adequate employment opportunities.
I think that is because they do not give for a second chance to start a new life. We never know if they really want to have that second chance as they are still human that have the heart to leave their occupation. Maybe if the government can give a solution such as giving them a new job to have an income to survive, I am sure they will leave it.