Why do we need English?

This post I want to devote to my own thoughts about the need of learning English. For someone, it may not be very interesting or useful or informative. But still, I'm about to share it with you.
So why do we learn English?
Firstly, it's a school subject☺and students have no choice, they must learn it.
Secondly, it's an international language.
But is it enough to be well-motivated?
Obviously, no!!! You still need other factors. You need something else. And I think the answer is fun. Learning English must be fun, it must be interesting, it must be enjoyable. Only when a person likes what he learns, he will have the result.
So let's learn English and have fun in the process.