I run 1000 cows on a 60,000 acre ranch in southern Alberta. It’s too rough to run a semi truck and trailer around on but I can haul a tri-axle Wilson gooseneck stock trailer with 20,000 lbs of cattle across it when I need to. There’s no roads through the ranch other than dirt trails so it takes a long time to travel through it and the fewer trips I have to make the better. Generally I’m moving cattle on horseback but occasionally I have to move old/sick/injured cows from a to b. Simply put, your European farms are miniscule and you don’t need the same capabilities that we do. The world is not uniform.