Why is Facade scope important in Laravel applications, and what problem does it solve for developers?

Why is Facade scope important in Laravel applications, and what problem does it solve for developers? The key reason to understand facade scope is that Laravel applications are usually composed of several layers that must work together predictably. A facade is most useful when it keeps an operation expressive without hiding important business dependencies. Ignoring that boundary can lead to duplicated logic, poor security, unnecessary database work, or code that is difficult to test. Why it matters in practice: Laravel facades expose convenient interfaces to container-managed services, while helper functions provide common framework utilities. The specific focus here is facade scope: A facade is most useful when it keeps an operation expressive without hiding important business dependencies. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.