If a professional teacher who is responsible for at least not risk having a salary to u.s-probably will not want to be a doctor who must work very hard and taking the rich person dealing with the risks all the time, but with less salary.
If a teacher is responsible for less risk a salary basis. Would not want to be a doctor The hard work Many sacrifices And willing to take risks all the time. But with low salaries
If teachers were responsible for less, no risk, high salary will be nobody wants to become a doctor. Working rich taking. And faced with the risk constantly, but the pay is low.