Because of the wide range of knowledge related to stage lighting specialty. Moreover, every detail on the stage cannot be taken lightly. If you don't pay attention to the accident, it will be passed on to laymen as a joke, which will seriously affect the safety of actors and audiences. Stage lighting is a very hard and tiring job, and it is by no means an easy job where you can get a high salary while sitting. So many laymen are extremely curious about this industry. Don't think that after training, you can become a master and gain both fame and fortune. If you think you can't bear hardships and stand hard work, don't like studying and studying, don't like unity and friendship, and have no team spirit. Please think twice before you act.