Why does nasal septal cartilage regrow after septoplasty or rhinoplasty and the tip cartilages do not?

I wanted to know why nasal septum cartilage regenerates and the lower and upper lateral cartilages in the tip of the nose do not, aren't they made of the same type of cartilage. Why does one regenerate and the other does not? I am assuming that there are more stem cells in the perichondrium of the nasal septum than in the lateral cartilages? It seems like if you remove the cartilage from septum during nose job a small or thin layer will regrow over a very long time. Can any doctors confirm this?