Interestingly, robot lawn mowers are enormously more common in europe than in the US. (They also apparently kill a lot of hedgehogs, which wouldn't be an issue

Interestingly, robot lawn mowers are enormously more common in europe than in the US. (They also apparently kill a lot of hedgehogs, which wouldn't be an issue in the states). I don't know if this is because lawns tend to be smaller in europe or some weird cultural pride thing, but they totally exist and are identically capable to roombas. Carpet cleaning should also be pretty comparable - there are many sweeping ones - though the robot would necessarily be larger. I suspect the market isn't there