There are basic things in the world almost everyone knows how to do. Think of making an egg — an elementary culinary act that nourishes while requiring little skill. But while you may think it’s a no-brainer, ask ten people to make an egg, and you’ll get ten different dishes.
Planning a software product is a lot like asking people to make an egg. If there was a product backlog for a meal made of eggs, it would probably include user stories like: