What's the use of System.String.Copy in .NET?

Question

I\'m afraid that this is a very silly question, but I must be missing something.

Why might one want to use String.Copy(string)?

The documentation says the me

Answer 1

With String.Copy you are actually allocating new memory and copying the characters from one string to another; you get a completely new instance as opposed to having both variables being the same instance. This may matter if you use the string with unmanaged code which deals with the memory locations directly and can mutate the string.