Having worked at FedEx, everything has fragile stickers and “this way up” arrows. If I payed attention to every notice on every package, I’d run out of room on the truck before I was even halfway through my shift. Plus I’d be spending way too much time in the truck, and I’d constantly be running down the conveyor to collect packages I missed while I was in there. The only special instructions we have the time to address are the hazmat signs. But yeah, some people literally punt packages onto their trucks, so there’s a middle ground to be found.