Because english (and any new language) is hard as fu*k. I'm a also a brazilian, and I think you can agree with me that not eveyone (actualy only 3%) of the brazilians have the condition to learn english. For condition I mean education and financial resources. I know that many of us learned english as we played chrono trigger or Metal Gear Solid, but we had a condition that many of our fellow brazilians did not have.