I doubt if you could sell the cows on that system. Hungry cows are un-bleeping-manageable. They will start by ignoring fences, corrals, etc. They will start searching and will mow down anything chewable they can get to——including the neighbor’s front yard.
As a side note the south side of Chicago used to have the biggest feed yards in the country. As I recall to local geniuses shut down the yards as well as the jobs , to build Midway air field. But can you imagine what those cows, and Mrs, Oleary’s cow, would have done to Chicago if they had gotten hungry? Food for thot?
“As a side note the south side of Chicago used to have the biggest feed yards in the country.”
I just watched the western Silverado (1870/1880??) and one of the characters said they worked in a feedlot in Chicago.