People have tended to move around the world throughout the history of man. As of now, there are around 258 million expats, and by 2050 an estimated 405 million people will be expats:
An immigrant is someone that goes to live in a foreign country permanently. Immigrants have a goal in mind to live permanently in a new country.
Leaving your home country, local food, family, and friends is not an easy task. Going to a new country where the food is different, the customs are different, and the foreign language can bring on some culture shock to many people.
There are many reasons people may become an expat, from learning a new language to going to school, or most likely because a job relocation has sent you abroad.
You leave to experience new cultures and new places to share different ways they do things.