The Single Responsibility Principle (SRP) is a fundamental guideline in software design. It emphasizes that every class, method, or module should have only one responsibility or reason to change. While this might seem simple at first, applying SRP correctly leads to cleaner, more organized, and maintainable code.

When each component of your system is focused on doing one thing, it becomes easier to manage. You can modify or extend parts of the system without worrying about unintended side effects elsewhere. This modular design helps keep your codebase flexible and scalable.