Reasearchers belonging to an organziation, Hands Free Hectare, claim they have created a 100% automated farm, where no person ever set foot in the fields.
People with large farms may be their target users. Basically, you map everything out using GIS/GPS, enter the coordinates into the computer and the machines do all the work. No need to hire farm hands!
The only kind of workers whose services will be needed are Reliability engineers, who will make sure the machines do not fail, failures in automation are said to be more expensive than in other methods.