The traditional idea of China people is that "study is for work", which hurts many people. Many children don't like studying, but they are forced to study by their parents. They suffered a lot and lost the opportunity to learn skills. Finally, when looking for a job, it is worse than a technical school graduate. There are also children who love learning and naively think that they can find a good job by studying hard, but one day when they grow up, they find that what they have learned is useless to their work, and they lose their motivation to learn and the opportunity to become a pillar of the country. Studying PhD and scientific research means sacrificing yourself, making less money and making contributions to society.