As I have mentioned on here before I spent twenty years as a fertilizer company agronomist before moving into tech and startups. In the fertilizer business one of the hottest trends is self-driving sprayers and fertilizer spreader trucks. I am guessing in ten years it's maybe 60% of the market. Its not moving the driver out of the cab but eliminating skips while lowering the stress of their 16-18 hour days.
So I have wondered if it would be possible for the farmer to work land and plant autonomously. But it has taken much longer because of the additional complexity. The first to adopt the technology will be the largest farmers. Crop farming is such a low margin business eliminating the cost of seasonal farm workers I predict will get quickly adopted.