When a person moves to a new country, they are often forced to choose between one of two cultures. When I say this I speak from experience because on many occasions I had to choose which side I wanted to be on.
Some people choose one culture over the other, but most become multicultural.
Few people believe that being of two cultures is a negative thing. I however, believe that coming in contact with two cultures can have an extremely positive effect on a person. Some people believe that being multicultural is a mostly negative experience. Being from different cultures can also expose a person to some forms of discrimination. People can loose jobs and other opportunities because of their background.