children do not understand the world of work and schools should make all teenagers spend a short time working as well as studying academic subjects. To what extent do you agree?

Question

The graph illustrates the income earned by three different age groups including first degree, higher degree, and other qualifications.  It is divided into 8 groups by age from 21 to 60.

It is clear that the earnings of people of 3 groups at the age of 36-40 were the highest. There was a significant increase from the age of 3 groups respectively: 370$ to 700$ of the first degree, 390$ to 750$ of higher degree and 420$ to 820$ of other qualification. People who have other qualifications earned the most amount from the age 21 to 40.

There was a fluctuation of 3 groups from the age 46-60. People with higher degree reached a peak of about 800$ and it also the highest income in the last age group while the income of other qualification of the first age group was the highest. Two other groups declined slightly and reached about 690$ at the age of 56-60.