I had always assumed that such a robot would be very specific (like a cleaning robot) but it does seem like by the time they are ready they will be very generalizable.
I know they would require quite a few sensors and motors, but compared to self-driving cars their liability would be less and they would use far less material.
When the tree of costs that make up a product are traced, surely all the leaf nodes are human labour? As in, to make the actuator, I had to pay someone to assemble it and I had to buy the parts. Each part had a materials cost and a labour cost. So it goes for the factory that made the fasteners, the foundry that made the steel, the mine that extracted the ore.
Shudder to think of how to regulate resource extraction in a future where AI humanoid robots are strip mining and logging for free.