They absolutely should, assuming a farm can afford them.
Robots are at work on my families
dairy farm and it greatly reduced the amount of calves that have died. Because of the way robots are programmed, the calf only gets the ideal amount of
milk replacer, and is not subjected to emotion like humans are. Has anyone who has ever had a bottle-fed-lamb not felt horrible about taking the bottle away from what seems like a hungry lamb? We all know what is good for it is to only give it what it needs, yet we give it more. This leads to the scours that is the leading cause of bottle lamb deaths. It is exactly the same on the dairy farm The robots on our farm do not do that, and the numbers are staggering, close to half as many calves dying.
But here is the best part, no one has been replaced. The robots still need to be tended too. They have needs too, so instead of the calf barn director directly feeding the calves, they "feed" the robots that do a much better job of feeding the calves. In turn more time is caring for sick calves, as well as making sure the barn is clean and bedded down. In short, it allows for more time to be invested in other areas of care. In other words, the calf barn director is doing their job better, not replaced.
But they are not cheap. Easily recouped by the reduced loss of livestock granted, but not cheap.