Why do they always recommend donating ribs when you go for a consultation?

My first nose is short and slightly bulbous, and
 I still haven't decided on a septum.
 At first, I thought I had to get it done with a septum no matter what, so I looked into hospitals that use a septum, but they said that if you use a septum, it will become crooked and lower later on, so
 for reference, 5 out of 7 places said to go with a septum (ㄴㅇㄷ, ㄷㄹ, ㅎㅌ, ㅁㅌ, ㄷㄷㅇ)
 (ㅈㅇㅈㅇ, ㅇㅌ) Here, they didn't get a CT scan and just said that rib donation is essential?
 
I don't want to repeat the surgery, so I'm looking into rib donation again.
 Since they said I'll have to repeat the surgery anyway because of the side effects and absorption of rib donation,
 I'm thinking that autologous rib donation would be the best. Autologous rib donation has no bad effects except for the scar,
 so why do they always recommend rib donation when I go for a consultation? Because it's my first time? Or is it because the surgery is a hassle?
 I originally planned to go to ㄹㅂㄹ, but the reservations are so full that I can't wait.
 Is it because there are hospitals that prefer autologous rib donation, or do you know of any hospitals that recommend autologous rib donation?
 I came back from Jㅇㅌ(ㄱㅈㅅ) ​​and there aren't many reviews of the donated wolf here either...ㅎㅌ How is it?