Do not mess with the kids in Skyrim. They are immortal, snarky, pampered, and apparently have access to unlimited funds.
It's funny, though.
Kids have death animations and even a VO for it, like the standard "augh" or whatever. With a killable children mod, when you.. y'know, kill 'em, they have VOs for the death. I found it funny, knowing that Beth added them because they KNEW someone would mod it in.