>>104264340Characters being seriously injured or dying doesn't necessarily make something not for kids, since it's important kids learn about that. I'd even say it makes for a good children's show since it better prepares them for the realities of life.
I think a better example would be something like Felidae, Plague Dogs, Princess, or pretty much anything by Bakshi, but those are all films. It's a bit harder to find animated shows specifically for adults, maybe something like Bojack.