Because it is a public, opinion based forum and they have opinions?? I thought I was pretty clear; no one answers to me in their pursuit of happiness nor do I want them too whether it is travelling the 7 continents, or building an underground shelter. You seem very upset that some would not want to travel to certain places. There are many places in North America I have no desire to travel to for my own reasons. Surely you support the idea that we are not all the same and view happiness in very different ways? What you call "fear" they may view as happiness. We cannot define what makes others happy, only ourselves.