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

Why is Public urls important in Laravel applications, and what problem does it solve for developers? The key reason to understand public URLs is that Laravel applications are usually composed of several layers that must work together predictably. Publicly accessible files need an appropriate disk and URL strategy rather than exposing internal paths directly. 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's filesystem abstraction provides a consistent API for local and cloud-backed storage disks. The specific focus here is public URLs: Publicly accessible files need an appropriate disk and URL strategy rather than exposing internal paths directly. 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.