That mowing American lawns uses 800M gallons of gas every year (2018)

Part of me really wants to spend enormous amount of money buying my aging parents on rural Northern property a Yarbo law robot.

The lack of gas is nice. Its also supposed to be a snowblower, which is a hard wintertime task & critical to living, not just nice to have.

It'd be a huge gamble on whether the thing really works at all much less how well or for how many years, but it feels like such a surreal bit of amazing sci-fi tech, that someday should be a thing, and oh my it would be so amazing if it worked pretty well.