1. Unreasonable time arrangement: College students are under great pressure to study, and schoolwork and exams take up more time and energy. If the time of labor education is added, it will lead to students' tight schedule and affect the learning effect.

2. Unrealistic tasks: Some tasks of labor education are unrealistic, such as rural labor experience and mountain construction. These jobs are not in line with the actual situation of college students, and are of little help to their real life and career development.

3. Security risks: There are certain security risks in labor education, which pose a certain threat to students' health and personal safety.

4. Ambiguous meaning: College students' time and energy should be more focused on learning and self-development, while labor education wastes their time and energy to a certain extent. The meaning of labor education is not clear, which is of limited help to college students' career development and future.