Why don't people just move to a shorter country?

Edit Post

21 year old 5'7 guy here...do people just pack up and move to a shorter country (South America, Southeast Asia, etc.) instead of doing LL? I'm thinking of doing this to go up to 5'10, but I want a job that involves a good deal of traveling anyway...wouldn't it just make more sense for me to move away somewhere and live happily ever after?

E.g, the average male height in Peru is only 5' 4.5"!!! Yes it would be a huge change, but wouldn't it be considerably easier to learn Spanish, settle down, etc?

Edit Post

So I guess my situation is quite different. Personally, I grew up in a 3rd world country, and had to travel a lot because of my parents' jobs (about once every two years to a new city/country until I was 18). Moving somewhere new after college isn't out of the question for me. It's interesting - while I have a decent circle of friends, I really only consider my blood family really close - perhaps because of how I have moved around growing up.

Also, to be honest, I just thought even if I did get LL, wouldn't I just start "anew" anyway? Won't people suddenly notice that I'm not short...Even if I do LL and stay in the states, I thought I would move to a new city/state in here and avoid others discovering the surgery. I'm aiming for a professional career (MD/PhD/etc) and I think this would be pretty bad for reputation if colleagues found out. What do you all think?