Fallacy of composition is like when you try to think that something that is true for one thing must be true for all the things. For example, if one person at the beach is wearing a hat to keep the sun out of their eyes, you might think that all the people at the beach should wear hats to keep the sun out of their eyes. But that's not true because not everyone wants to wear a hat - it's their choice. Fallacy of composition is when you try to make everyone do something because it works for one person, even though it might not work for everyone.