Why is it important to adhere to the single responsibility principle in programming?

The Single Responsibility Principle (SRP) states that each class or module should be responsible for only one specific task or functionality. This is important because:

• It simplifies understanding and maintaining the code — when a class does only one thing, it is easier to read and modify.
• It increases reusability — individual components can be used in different places without unnecessary dependencies.
• It reduces the likelihood of errors — changes in one part do not affect others, which lowers the risk of bugs.
• It facilitates testing — it is easier to write and maintain unit tests for small, specialized classes.

For example, in iOS development, it is recommended to separate display logic (View), business logic (ViewModel or Presenter), and data handling (Model), so that each component has its own responsibility.