DO ALL DOCTORS DO THE SAME JOB?

My mother and my father are both doctors but they don't do the same things. For example, my mother is a doctor in an emergency service so people can go there when they have a backache or stomach ache or they can go there because there is an emergency like an accident or a fire. She works with nurses there. She usually goes to work at noon and works till 12 o'clock at night so she always drives home. At work she always wears comfortable clothes and shoes because she has a very busy job. My father is an eye doctor, but he doesn't go to hospital every day. When he has an operation, he goes there. He has his own office and his patients visit him there after they get an appointment. There is also a secretary in his office. The secretary helps my father a lot. His office is very close to our house so he can walk there every day.