I totally agree with Vhootee. Let's analyze these two situations.

Your social background at a young age determines what you want to do in your future. Like said above, if you are from a prosperous family, you do have a lot of emotions attached and you miss people back home. While you were in Nepal, you were never misbehaved or ill-treated, never had to earn your living, never thought of how father earns for everyone in the family.S o except than the political turmoil; really there is nothing in Nepal that you would be uncomfortable with. Like you get mixed up with the American Culture, it might take some guts to return and get adjusted but considering family support and love, it wont be as hard as you think right now.

Now, what's with a person who came from a poorer family? I am taking myself as an example. Obviously, its not the same. Poorer family means you pretty much do not have any positive experience. You had no respect and no social support. Things even get worse if your from a broken family, you even loose the family support. So, these kind a people who somehow get here and try to do well and in turn gets the respect they always starved for; never miss so called "Home". This is a new home for them which at least gives them opportunity to grow and gain the pride which they use to dream about. Of course, there are memories associated with friends and some closed ones, but as time passes that weakens too. 

I am sure there are people here who wish that they could work from 8 AM-5 PM here in US and spend the remaining time back in Nepal with friends and families and get back to work on time the next morning.