As someone who learned english early, English seems like such an easy language. After all, it only has 25 letters in the alphabet. Compare this with Chinese. That being said, after observing many international students, I've come to realize that English is no easier that any other language. English may only have 25 letters but there are so many phrases or "ways of speaking/writing" that go against the official rules. Basically, there's a ton of exceptions which make it difficult for foreigners to learn English.