Every day, either in the city or out in the village, I see guys like this taking massive amounts of grass around. I finally asked what on earth they're using it for. They feed their cows with it! Well, of course. Why didn't I think of that? You see cows all over the city, with their herd boys trailing and taking them to empty lots where the cows can graze. Since cattle are still a sign of wealth here, even a city-dweller might have some IN the city, as well as some out in the village if they have a farm. My neighbor has about 6 cows in his back yard, and daily you can see them (and his 5-6 goats) wandering by.
Where do they get the grass? Well, in the wetlands/swamps of course, just off of the Lake.