I think the point is that even for beginners these examples are dumb. If you want to explain OOP and inheritance you can use simple but realistic examples, like

I think the point is that even for beginners these examples are dumb. If you want to explain OOP and inheritance you can use simple but realistic examples, like `class Shape { fn draw() }`, `class Rectangle extends Shape`, `class Circle extends Shape`, rather than `class Dog extends Animal` or some dumb stuff like that.