I'm not worried about kids emulating the violence. What I'm worried about is whether or not a child is emotionally prepared to handle seeing people be executed, people get impaled, dead bodies with blood covering them and glass sticking out, people lying in a pool of blood, and faces getting burned off and people disintegrating. Even Bruce Timm himself said that he wouldn't let his own daughter watch Batman Beyond because he felt she couldn't handle it at her age (correct me if I'm wrong there but I think I got the gist of it). As for the profanity, I don't want my kids learning that crap, plain and simple.