So when discussing something like the title of this post, we could talk all day about what we personally believe the answer is, but the legality really is the only objective answer here.
I agree, we can enjoy a long insightful conversation if we talk about morals… Why do you sound like that shouldn’t be the default?
Edit: wait, how in the duck do you expect a single monolithic legal answer in a question that did not provide a legal jurisdiction?
Compatibility, though it’s usually forced, like the Xbox controller with a drm chip that you need a workaround for