Could you give examples where using asynchronous methods is most justified?

Asynchronous methods are especially useful in situations where operations that take a significant amount of time or depend on external resources need to be performed without blocking the main execution thread.

Typical cases:

• Input/output (I/O) operations, such as reading/writing files, network requests, working with databases.
• Handling a large number of concurrent requests, for example, in a web server.
• Performing long-running computations in the background to avoid slowing down the user interface.

In Go, concurrency is achieved using goroutines and channels, which allow efficient resource utilization and improve application responsiveness.