Everyone has their own say. Buy the reason lot of people like to stay back in US is because of the lifestyle. US lets you stay the way you want. Be yourself. Most of the people say you got to work too much. I believe in US every one lives what they are worth, work for hourly wage or salaried, you will earn what you are worth. Unless you are kind of person who complaints with the work, US lets people work, live, eat, and do things what you can do. Alien by the word means something from outside. Its just name that nepalese assume that the thing has to be from outer space. 'Alien' itself means something from outside. For US people from outside US are aliens. Its a different thing that Nepalese do not use the term Alien for 'foreigners'.