The English-only movement is when people want everyone to only speak English in public places, like at school or at work. It's like saying that everyone should only talk in one language and not use any other languages. Some people think that it is important to speak only English so that everyone can understand each other better, while others think that this is not fair to people who don't speak English as their first language. It is important to remember that everyone should have the right to speak in the language that they are most comfortable with, and that we should try to understand each other even if we speak different languages.