[vkazanov]

This is not oop but polymorphism that is useful. And various forms of polymorphism are used in all kinds of programming paradigms.

Also, this is a nice way to get the damn banana without getting lost in the jungle.

[jcelerier]

polymorphism used that way is 100% the most traditional OOP possible ever

[vkazanov]

Yes, a similar approach to polymorhpism is supertypical for popular OOP-focused languages, along with other concepts.

[flykespice]

isnt polymorphism inherently a subset of oop?

[vkazanov]

No, all popular functional languages have one flavour of polymorphism or the other.

Or, in math speak, Oop means polymorphism but polymorphism doesn't mean oop.