My looking at pictures and videos of such fields in Sweden you seem very wrong. Many videos show cows side by side crops and the land looks no different.
But sure, keep on looking at a picture of grass and decide that the land is suitable for other crops.
The next time you leave for the wilderness, go to a field, go the edge of it and see if you can figure out if there was a reason they didn't expand it further out.
I wouldn't dream of asking you of taking a random commenter at face value.