People have been known to move around for various reasons. If you ask an immigrant why he or she came to the US, most likely response will be the lack of opportunity in their home country. The worker may have skills and experience but if there are no job available in his field, he or she has no choice but to relocate. Many well educated, skilled workers decide to try their chance at better life through immigration to the United States. The process may be lengthy, complex and expensive. Some employers may offer assistance with relocation and immigration process, while other don’t. The United States of America offers a lot of opportunities but they are certainly not free.