Why Learn Language

If you were a speaker of, say, Finnish, you would not be asking this question.  The answer is very obvious: no one outside Finland speaks Finnish, and if you want to travel or have any dealings with the outside world at all, you have to speak another language (probably English).

If, however, you are a speaker of English, the answer is not so clear.  As speakers of what has become the international language, we are not obliged to learn another language in quite the same way.   When we deal with people from another country, they often speak English; when we travel overseas, we can nearly always find someone somewhere who speaks English; and it is very clear which is the first language of the Internet.