Why inherit from ICloneable?

Question

C++ / C#

class cl1 :  ICloneable
{
      public object Clone()
      {
         return new cl1();
      }
}

class cl1
{
      public cl1 Clone()
      {
         return new cl1();
      }
}

why is the first option used in most examples? if more practical option 2?

Answer 1

Actually, you can combine them :)
And the first option is needed so that you can cast to ICloneable and not know what we are cloning there