Da hell@Frank response....
Solid 5'9" is decent is most of the world except some Eastern and Northern Euro countries.
Starting at 5'9" in one of those countries, I would consider CLL, since the neurosis would be the same as it is in the U.S. being 2.5 inches below the average. Using 1x CLL to get 5'9" however and then wanting another surgery = gotta wonder If the recovery, financial, time, pain, and proportion returns are worth it in the short and long-term.
But some people still have height neurosis even when they're average, or in the 80th percentile (one guy was 5'11" and got CLL).... So it's relative to how you feel in the end. Does it make sense for an average guy to want to be taller? Yes. Does it make sense for him to want to go through CLL for it tho? Not from a logical POV. But neither does a thin girl feeling like she's fat and making herself vomit, or the musclebound guy at the gym feeling like he's not bulked up enough.