Hacker News Reader

almost everything you have in your home is built for humans, so adopting this form factor is the likeliest to fit everywhere and be able to operate everything

That's a thought-terminating cliche with no actual basis in fact. I see no evidence that your "so" is indeed an explanation.

Not all homes, even in America, have lots of open space. One device that can perform and interact with objects made for humans is a convenience thing. Most new-construction homes don’t even have “garages” for smart vacuums, despite being a decade old and frequently discussed.

Sure a team of robots could just trigger APIs and swarm around the house, but that’s a lot of moving parts. Alternatively, we could build our home for robots’ use, accept our homes aren’t made for us, and hope the form factors don’t change over the lifespan of the building.

Stairs and shelves.

You don't need to be humanoid for those. A robotic spider with claws would be just as capable.