In this modern era, peolpe are seen to live in different territories from their own country to lead a better life, obtaining a variety of experiences and travelling purposes. Therefore, few individuals claim that in terms of rapid growth development of a country, it is more nevessary to have different nationalities people with various cultures and heritages. However, I completely disagree with this idea and thus this essay will unveil why this stront poin is nt effective for a country.