I agree with the second opinion.
In my point of view every countries have to have their own language. Is the part of their culture and identity. I'm learning more than one language, and I like it very much.
I love communicate with the other people from all over the world, and it's funny for me when we are trying to talk. We are making many mistakes, but we are learning.
Is good that English it's a language, which is using by people all around the world. It's fantastic that I can talk with the man, who is living in the other part of the world.It's very important to learning languages, because it's very nice when you are in the other country and you are speaking in the native language. People are nicer for you and they treat you better.