We thought the rider fell off or something and it was going to crash. Then it turned and kept mowing. Park Roomba!
Another picture:
I have heard an idea floated around that the companies that make these types of automation devices would pay massive taxes on them, and that tax would pay for UBI. I’m not sure how the math works, but to me that sounds like the ultimate endgame. Then we can all enjoy our lives without needing to do tedious or backbreaking work.