A Turkish student of mine once argued, why don't Americans or English people make an effort to understand us when we are trying hard to understand them? When we go to America, we learn English and keep up with them. They do not learn Turkish when they come here. They speak English everywhere. He may be right at his reasoning about his dispute, but we shouldn't evaluate this situation with an inferiority complex. I think if Europeans can speak three languages, foreigners can have four; it won't make us less patriotic if we learn a second.
English is the most widely spoken language around the world. It is the official language of 53 countries, that is, more than a quarter of the countries around the globe. Learning English is opening your world when it comes to meeting new people and allows you to get more from popular culture.
It also opens many opportunities you can't imagine. In a very competitive world we live today, learning English is very important. It increases your chance of getting a good job. To have English as one of your many skills makes you more desirable to employers. In addition to that, it can qualify you to a multitude of positions that require someone bilingual or multi-lingual. Moreover, the language will take you as far as you take it. It increases your work options and may eventually land you a fascinating job unimaginable.
Another reason is that it makes it much easier to travel. You will confidently want to travel anywhere you desire. Often translated are airplane announcements, train timetables, emergency information, and street signs. Even if you can't find other travelers that speak your native language, you can always find someone who can speak English, so you travel worry-free.
There are so many reasons why we should learn English. For whatever grounds why we are spending lots of effort, time, and money to study English, one thing is for sure, having another language aside from our own is the coolest thing ever.