Comment by brodo

> Why would you not focus on writing OO code in an OO language for example?

Often people do this to deliver higher quality software. Most languages still have some OO features, and people don't use them because they know they lead to bad code. Inheritence (a core OO feature) comes to mind. Most professionals nowadays agree that it should not be used.

OO designs are often over-abstracted which makes them hard to understand and hard to change. They lack "locality of behavior". Trivial algorithms look complicated because parts of them are strewn across several classes. This is why more modern langues tend to move away from OOP.

My guess is that im the long term, what we will keep from OO is the possibility to associate methods with structs.