First of all, beauty salons are not welfare schools. He teaches you that you should contribute to him. For example, the handyman in the barber shop is an apprentice, and most of them are free. Of course, barbershops also hire handyman for free. So is the beauty salon. He taught you for a period of time, and basically you became a beautician there, because the novice has no work experience and is not skilled, and no one recruits you when you go to other places. It is equivalent to training one's own people in a beauty salon.