When we built self-driving cars, did we put a humanoid robot in the driver's seat? No. We put sensors on the car's perimeter and plugged in to the existing electronics. Forget "fits in human spaces" and think about an actual task you'd trust a robot to do for you before it's battery runs out. And who says you need one generalist? I have 5 different automated kitchen machines right now and they are all various types of rectangular prisms. I have a robot floor cleaner and it's a disc on wheels. I'd sooner have a kitchen robot that's on a rail bolted to the ceiling and connected to mains power.

This is a terribly contrived demo and not really realistic, but it illustrates my point. It's a bathroom-cleaning robot and it's kinda what I described. R2D2 with arms coming out of it's head. It's roughly human-scaled, but not at all humanoid.

https://www.reddit.com/r/robotics/comments/1q9y5wh/toilet_cl...