Might be the first time I've seen a mobile house-robot besides a vacuum that's actually very useful.

My mom works as a PSW and I showed her this, she mentioned there's a large number of people not quite at the point of needing an in-home person where this could fill a lot of roles.

The video is quite excellent by being simple (designated rooms + designated trays/table areas + follow me + Alexa integration) and showing practical examples.