The English language has been the common language of the world for decades. It is now impossible to find a country where learning English has not become a norm. While there are some people who would like to stick with their native language and who would prefer not to learn English, the benefits of learning and mastering English goes beyond the four corners of one's own country.
Whenever you wish to travel someplace, you have to communicate. If you do not know the language of the country where you intend to go, just try speaking English and you would be understood right away. Now imagine yourself traveling to a country, and you do not know how to speak English. The encounter with a foreigner would be a disaster if you do not know how to explain or ask questions in English. In effect, if you have already learned English, talking to a foreigner would prove to be an easy time.
The majority of media publications including newspapers and magazines are in English. If you are hungry for information with regards to what is happening at the other side of the world, you can always acquire a newspaper and start reading. But when you started to read the first sentences, there were already some words which you did not understand, and instead of reading further, you just set out the material and chose some other activity. Now, if you have learned English continuously and have become familiar with most English words, you could have finished the whole reading material and have gotten the information that you wanted.
Immigrants also need to learn English especially if they will be working at firms or other companies where English is the medium of communication. Instructions would be clearly understood, and therefore the room for error is minimized. At the same time, an immigrant who would try to explain himself to his boss and co-employees would be clearly understood if he could construct his ideas into a single coherent thought. This can only be achieved by learning English seriously.
For those immigrants who are in the process of looking for a job, a mastery of the English language would put them at a higher leverage compared to those who do not. Considering that communication is an essential component in a workplace, persons who are able to communicate well using the English language would always have an advantage over others.
The English language plays an important role in all aspects of society, and there is learning and mastering it would greatly give advantage to the person concerned.