Ever try it on something that weighs 40K? People including myself do. Better yet have you ever had an unloaded truck where it turns on as the rear end hits a big bump and then you loose brakes? There are a ton of cars and trucks that are still on the road that don’t have it. Read a CDL book sometime. It’s called adapting to driving conditions, leaving yourself room to stop and “a way out”. Don’t drive like a tool.