Why catch and rethrow an exception in C#?

Hello colleagues! I'm new to C# and often see in other people's code a try-catch construct where inside the catch block they simply rethrow the same exception using `throw;`. This seems pointless to me — why catch an error if you don't handle it, but just throw it again? Why not let the exception bubble up on its own? For example, I often encounter this code: ```csharp public void DoSomething() { try { // some dangerous code int result = 100 / 0; } catch (Exception ex) { // do nothing, just rethrow throw; } } ``` In my opinion, this is the same as simply not wrapping the code in try-catch. If you remove try-catch, the exception will still propagate outward. But since experienced developers write this way, there must be