What is Nested binding in Laravel, and what role does it play in a real application?

What is Nested binding in Laravel, and what role does it play in a real application? In Laravel, nested binding should be understood as part of a larger application architecture rather than as an isolated API call. Related resources can be resolved together when the route structure and binding rules express the parent-child relationship. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Route model binding lets Laravel resolve route parameters into Eloquent model instances, reducing repetitive lookup code in controllers. The specific focus here is nested binding: Related resources can be resolved together when the route structure and binding rules express the parent-child relationship. 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.