I learn English because it’s an international language. Most people are using this language on the daily life. It is an important language we use this language to communication with other countries people. On the internet, films, music, TV, so on and it is all English. But not at all can understand English, and it's not easy.
People have different life styles therefore, there is a difference in knowledge of language.
People are different in that language entirely. It is a form of living varies