Most people are not professionals. In fact, they can learn what they are interested in during the summer vacation, and they can also learn a skill to enter the society in the future. Fitness instructor is a good choice. With professional knowledge and fitness skills, students can study and graduate in winter and summer vacations, and then they can go to the gym to practice and experience the work of fitness instructors, laying a foundation for entering the society in the future. After graduation, they will have rich work experience.