Ironic that you are displaying the exact degree of critique of the design that you should! Lack of thoughts like this are the issue. Unfortunately this polymor

Ironic that you are displaying the exact degree of critique of the design that you should! Lack of thoughts like this are the issue. Unfortunately this polymorphic list sort of design is far too common. Much of the code that cares about this architecture is going to be in the implementation of these classes, not in some single and easily fixable place.