What are the general conditions for a company like SM .. JYP recruits trainees in South Korea? Such as age, etc

There seems to be no specific requirements, mainly depending on looks, some talents, such as singing and dancing (especially good, because most players can do something, so if they want to win, they really need the strength of others) and whether they are on camera. I think it depends on luck to some extent. Of course, you'd better be careful about your age, because once you become a trainee, you don't know when you will debut, and the company won't put an older artist on the market ~

Being an intern is very tired, but Han Geng doesn't tell me that sometimes he has to practice for 20 hours a day. Besides, as an intern, I don't know if I can get out. Trainees like Ying Jun, sm and Han Geng have not been able to get out so far, so I don't know if they are still in the company. Moreover, many Koreans look down on China people and fear that life will be difficult. But on the other hand, you can really get some exercise.