On: If Inheritance is so bad, why does everyone use it?

[constantcrying]

I have never really seen it work. To me it seems it can work if and only if you are doing serious waterfall projects, with a tightly bounded scope.

If you have to model your data exactly once I believe it can work. But if you are doing any kind of agile, or even somewhat flexible waterfall, you will find out that at some point none of your data models work.