If you are not a English konwing man, can you imagine how you communicate with other when you are outside of your country. It's a more thinkable subject for us. As i am a Bangladeshi, my native language is Bangla. But when i am work in my office, communicate with foreign delicate, that's totally depend on English.
I think English is a language which helps us for communicating with the whole wrold. In the world, there is almost 700 crore people but is it possible to know all regions native language. But if we learn English language, we can easily communicate with the whole world.
I am not against native language but modern world is mostly depend on English language. So we can't avoid the demand of time, If we develop myself, mycountry, English is most important.
(Thanks)