Read the following passage carefully and answer the questions given below it.
Many men and women are so money minded that they do not undertake any serious work that does not pay. They believe that it is foolish to exert themselves for study and brain work which cannot be converted into cash. Hard work only for money, and then plenty of play and pleasure: this seems to be their rule of life. They value intellect only as the key to material prosperity and regard personal mental development as a foolish fad. This miserable materialistic psychology is very deep rooted in all classes of society. Rich and poor, all suffer from it. An old working woman complained to me of her sons habit of occasionally buying some books, and said, He wastes his money on books. What good are they to him? He is a carpenter, not a schoolmaster.
Why does the old woman not like her son reading books?