All plastic surgery (except teeth) has to wait until adulthood. The main reason is that it can only be repaired after adulthood. When I was a minor, I was still developing and would be deformed after plastic surgery.

Take myself for example. I had a flat nose when I was a child, and then I began to grow taller in adolescence. After the age of 20, the nose is not so big (it used to be big) and it is getting more and more stiff (now 25). Friends I haven't seen for a long time all think I have plastic surgery, hehe. So you don't have to worry!

But I still want to remind you that it depends on the nose type of the elders, and it is hereditary. Although the plastic surgery is very beautiful, as you can see, those female stars in Korea can't move their noses, but they break their bones when they move. Might as well not do it.