The tip of the nose tends to droop with time, like everything else, so we interpret a long nose as belonging to an older face.  A rhinoplasty, therefore, can be performed as a facial rejuvenation procedure, to make the face look younger.

She had a face lift at the same time as her nose surgery.  The face lift smoothed her jaw line, but shortening her nose added considerably to the impression of youth in her face.

But issues of youth aside, she just thought her nose was too long for her anyway!