The premise is a bit odd with the robot's. We have these robotic animals wandering around the world, just like actual wild animals would. Then we have the humans scurrying around living what looks to be a caveman like tribal existence. You'd have thought, having a sentient, critical minded, opposing thumb existence, these humans would have exploited the robot's a long time ago and living a more advanced life.
I'm not going to dwell on the realism though. Otherwise what would be the point of fantasy story telling?