There isn't a "task-shaped" robot for unstructured and complex manipulation, other than high DoF arms with vision and neural nets. For example, a machine which can cook food would be best solved with two robotic arms. However, these stationary arms would be wasted if they were just idling most of the time. So, you add locomotion and dynamic balancing with legs. And now these two arms can be used in 1000 different tasks, which makes them 1000x more valuable.
So, not only is the human form the only solution for many tasks, it's also a much cheaper solution considering the idle time of task-specific robots. You would need only a single humanoid robot for all tasks, instead of buying a different machine for each task. And instead of having to design and build a new machine for each task, you'll need to just download new software for each task.
So, not only is the human form the only solution for many tasks, it's also a much cheaper solution considering the idle time of task-specific robots. You would need only a single humanoid robot for all tasks, instead of buying a different machine for each task. And instead of having to design and build a new machine for each task, you'll need to just download new software for each task.