English is the most difficult language in the entire world to learn.
So I keep hearing... but only from English-speakers that have never become fluent in any other language (which makes them exclusively American). No, English is not the most difficult language to learn. Of course, it is a bit relative - if you're Chinese, it's probably extremely hard - but then German might be even harder for you; however, if you're of European origin, learning English should not be a problem. By my reckoning, one of the reasons why English has become so widespread is not only the fact that it's one of the languages of colonization and business, but also because it is not all that hard to learn.
I've studied French, German, currently I'm studying Swedish and my native tongue is Czech - have perfect understanding of Polish and Slovak as well. Just so you know that I actually know what I'm talking about because I've learned English from scratch when I was 16 years old. At 17, I was in US college. The ONLY reason why people don't learn English is because they explicitly don't want to. There is no other reason or excuse. Of course, one should give them a break and realize how privileged you are that you were born with that language as your mother tongue.
I just wish that among all the anti-immigrant talk that's been going on on this board, someone would take a moment and respect immigrants for all the hardship they had to go through by moving into another country, having to get used to another culture, learning another language - experiencing a total paradigm shift, etc. Many of those that criticize and dislike immigrants the most are some of the laziest, most detestable and close-minded people I've ever met - if they had to move to another country and actually survive, they'd lose their shit the first couple of weeks.
A bit of a rant... sorry... it's 1:30 am here...