Is it difficult to immigrate to America and come to Tibet?

It is difficult to immigrate to America, but it is difficult to come to Tibet.

Tibet is a provincial administrative region of China, with a sparse population, relatively backward economic development and relatively low attraction to the population. Secondly, Tibet has a vast territory, complex terrain, harsh climate and harsh living environment, so immigrants need to have sufficient adaptability and physical quality. Because of Tibet's special geographical location and political sensitivity, immigrants to this area need to go through strict examination and approval procedures and background checks.