Such experiences make working-class women distrust men in general. They still have babies with men, but they seldom marry them. A whopping 50% of births to American women without college degrees are non-marital, but only 6% of births to college graduates are. Similar trends can be seen in Europe. In Britain 90% of professional couples wait until they are married before having kids, compared with only half of those who earn the minimum wage. Looking at eight European countries, Brienna Perelli-Harris of the University of Southampton and others found that the less educated a mother is, the more likely she is to have a baby outside marriage.
Secondly, as group A students are contributing less, they surely get less benefit. Moreover, many companies which employ people in group A have to train them from ground-up. These companies take this cost from group A’s salary to reduce the risk of their employees leaving to other companies after being trained. So, less benefits are unavoidable and certain, group B members are more loyal and effective workers. They also have useful experience and skills. Besides, their education is the same as or even higher than that of group A. As the result, group B gets more benefits absolutely.