What does it take to become a professional golf caddy?

Girls are required to be more than1.6m in height, while boys are required to be between1.7m and1.8m in height. Regular facial features. Can speak mandarin, preferably a little golf terminology and simple English, be polite and communicate with guests, not just please them. After all, we caddies have our own dignity. I think I know the fairway or something. That was after going to the stadium.