A bit of background first:
I am a pretty mellow person in general. I like spirited competition (sports, etc.) but abhor violence really. I've gotten to the point where I don't watch movies or play video games with violence just for the sake of violence and killing in general has bothered me for years to the point I often consider becoming a vegetarian but it would be extremely difficult given the people I live with.
On the drive home tonight, I was reflecting on D&D specifically. The rules of course are at 0 hit points a creature is dying, and most DMs just say it is dead, allowing (generally) only PCs to make death saves. I've posted before about alternatives for 0 hit points, how it could just mean "defeat" in most cases, whether that leads to surrender, fleeing, or whatever, just not death.
So, like always, I am curious: does anyone play D&D so that even the creatures your PCs encounter aren't actually killed, or at the very least only rarely when it is important to the story?