Earlier quoted context omitted.
Excuse me? No, just no. Not in the same way a human slave needs to be taught. Not at all. And besides I said dogs "don't need to be taught their place in the world" not "what's acceptable and what's not." They do in a sense, of course, but not remotely in the same sense as a slave.
I'm objecting to your sentence, saying it's objectively false. Whether or not training another human being is ethical or not is another argument (e.g. children). A dog needs to be taught what is acceptable behavior and what is not acceptable behavior. If you have somebody living with you, they need to be educated on what they can and cannot do. And since dogs and human are pack animals, you need to enforce the idea o…
This is clarified by using an inanimate object (wrench) as a the other example.
Human beings though have to be molded in order to keep their 'place'. They can even aspire to want to be things that they cannot achieve, such as my never ending desire to be the first man to set foot on Mars.