When a girl leaves home, she tries to succeed as a peddler. But she has to compete with the male-dominated labour market. A girl will dress up like a boy to wash cars. When the boys discover that she is a girl, they send her packing because the street turf is all divided up. As in real life and in society at large, the girls have no place that is theirs.
Girls have no place in the labour market of the streets.
So the girls fall in with a gang. Everything ends in sex work or else the girl ends up dead. She does not have any choice in the matter because violence is the way of the streets. She will be raped constantly. The only escape is to sell her body in order to obtain a little peace.