It's just a job, and there is no high threshold. Nothing more than asking you to have some experience in the civil service examination. It would be really strange if every lecturer in public education in China was admitted to the civil service. In addition, the lecturer's eloquence is also indispensable. After all, the lecturers in training institutions are eloquent and have accumulated some experience, which can make students rush to sign up for study. The more students there are, the more money the training institutions earn, which has achieved the most primitive goal of the training institutions.