Does humanity need many languages? such a question is asked by the Ukrainian site Cambridge do you agree when globalization took place, no one wants to learn the Tatar language or the Karaite language everyone wants to learn those languages that will provide quality education and high incomes 10-15 such languages
People are going to be born into one language of their family. So, there are always going to be unique languages unless everyone stops speaking them. But that hasn't happened yet. There are still remote areas where people speak minor languages.
