We are approaching the point at which people who like to play farming simulators can be charged a fee for the privilege of actually farming. Using the same app.
Even Tom Sawyer didn't dare to charge Ben Rogers to whitewash Aunt Polly's fence.
But yeah, what do you do if you have a breakdown or an issue in the machine (like a rock stuck somewhere) that needs fixing? I guess if you look at US large-scale operations (five combines next to one another) you could have one maintenance guy / foreman with five remote operators?
I do think we'll see more of that. I mean there's the jobs depicted on TV (so I don't know if this is actually a thing) of people looking at security cameras, that can be done from home I think. Plenty of FNAF fans that have done that for ages.
But it has to be secure. I mean another remote operator job I can think of is in factories and power plants, but that's really not something you want to be doable over the internet. Even without internet, stuxnet (?) proved you can cause damage in that kind of systems.
Of course if you are in western Europe US farms are big, but there is more to the world than Europe and the US.