No matter where one goes,once one changes the cultural environment,it will feel out of place.But there is a reason one chooses to live outside the country he's born,and no matter what is the reason , the country he/she chooses deserves the respect.That is the Alma Mater ,or feeding and supporting hand.There are difficulties for immigrants everywhere,but I truly believe US gives everyone more fair opportunities then any other country, and the fact of smiling at strangers and "fake" 'Have a nice day' is better,then seeing moody or gloomy faces,depressed from life they live,making everyone else around depressed .