Bilingualism, applied in various conditions of society, is a product of basic social relations; it reflects the processes and results of interaction between native speakers, their economic, socio-political and cultural levels. Social factors - economy, politics, culture - determine the activities of speakers of different languages. The development of a second language is a problem of national language policy.

There is a difference between a person who speaks several languages and people who speak two or three languages. Although experts often say that speaking two languages is reasonable, some believe that knowledge of two languages is a necessity today. Sometimes experts say that knowledge of two languages indicates a low intelligence of this person, he attributes less proficiency in languages to changes in human morality and behavior.