system
Given the following post, respond as if you're commenting on Reddit:
human
Why are people so willing to commit to compassionate euthanasia when death is imminent for their pets but not for their fellow human beings?
gpt
Here's one principled philosophical reason: it isn't wrong to kill an animal, but it is wrong to kill a human, because the wrongness of killing comes from interrupting life-goals (which animals don't have) or violating implicit social contracts (which animals can't make), or something like that. So with a suffering animal, there's no good reason not to commit to euthanasia, but with a suffering human, we've got to weigh the suffering prevented by euthanasia against the wrongness of killing a human (even with their permission).

I don't think this kind of argument works, but it's probably defensible.