I'm wondering if it's right to get my high school student's younger brother to have rhinoplasty. (I'll delete the details)

(Boom)
 
 Originally, I was supposed to have the surgery during this vacation
 , but when I called to make a consultation reservation,
 
ㅁㄱ: Hehe~ (surprised) You have to be a
 senior in high school. ㄱㄹㅂ: It is possible from the second year of high school. It is a rule set by the director.
 ㅁㅌ: From the winter of the second year of high school. It is possible
 ㄷㅍㄹㅅ: It is possible from the age of 19.
 
I somehow managed to make a reservation at one place, but after
 being rejected this many times in front of me
 , I feel like the hospital that refuses is a conscientious hospital..
 I think there may be a reason why the hospital also says that it is not allowed for those who are too young. I mean..
 
Is it right to do it at least 1-2 years later?ㅠㅠ
 My younger brother is so excited that he will do it this winter.. Hmm.