>If you teach someone that there is value in making Car extend Vehicle just because that expresses a real-world relationship, you are teaching exactly the wrong

>If you teach someone that there is value in making Car extend Vehicle just because that expresses a real-world relationship, you are teaching exactly the wrong lesson and your students will create overly complex inheritance hierarchies. Only if your students are idiot drones. I think the majority of us went through these same lessons and came out just fine. Stupid is as stupid does (why do I keep saying that so much?) People who are good programmers can take a simplistic lesson like that and grasp the over-all concepts while people destined for terrible careers simply wont. No point bringing down the rest us with them.