单项选择题

Passage One Questions 61 to 65 are based on the following passage: Parents have to do much less for children today than they used to, and home has become much less of a workshop. Clothes can be bought ready made, washing can go to the laundry, food can be bought cooked, canned or preserved, bread is baked and delivered by the baker, milk arrives on the doorstep, meals can be had at the restaurant, the work’s canteen(自助食堂), and the school dining-room. It is unusual now for father to pursue his trade or other employment at home, and his children rarely, if ever, see him at his place of work.. Boys are therefore seldom trained to follow their father’s profession, and in many towns they have a fairly wide choice of employment and so do girls. The young wage-earner often earns good money, and soon acquires a feeling of economic independence. In textile(纺织) areas it has long been a rule for mothers go out to work, and this practice has become so widespread that the working mother is now a not unusual factor in a child’s home life, and the number of married women in employment has more than doubled in the last twenty-five years. With mother earning and his older children drawing decent(相当好的) wages, father is seldom the dominant figure that he still was at the beginning of the century. When mother works, economic advantages increase, but children lose something of great value if mother’s employment prevents her from being home to greet them when they return from school . What is the main idea of the passage