Also, note that this is a joke. but it is likely that the way the world is presented to children uses animals as innocent creatures that would be kind if left alone. This is just not true, a hungry bear will eat a human. Sorry yogi, it's true. Also, when people are portrayed, in typically adult films, there's usually a lot more bad guys killed than good guys. And they're bad. So you don't feel sad when they die since they were evil.