A car saves you time walking/biking, a robot saves chore time. Depending on depreciation, it's feasible that you could go do minimum-wage level work on Doordash using the chore time you save from the robot and still come out ahead. E.g. 5 hours/week at $20/hour = $5200/yr

Vehicles, when first invented, were 100% a luxury, not a necessity.

They only became a “necessity” once they went mainstream and the world started evolving with vehicles becoming a part of everyday life.

I can certainly see the same thing happening with residential robotics.