Taxi drivers

A woman and her 7 years old son were inside a Taxi. It was raining and all the twilight girls were standing by the roadside.

The Boy asked; "Mummy, what are all those women doing?."

His Mother replied; "They are waiting for their husbands to come back from work."

The Taxi driver turned around and said; "Why don't you tell him the truth?. Little boy, they are prostitutes, they sleep with men for money."

The Boy's eyes got wide and asked; "Mummy is that true?"

His mother, glaring hard at the driver replied; "Yes.!!"

After a few minutes, the boy asked; "Mummy, what happens to the babies those women have?."

She replied; "Most of them become Taxi drivers.