Like what? And is that a common use case? Furniture is what comes to mind

Or just put down a nylon sheet, put the dirt on top, fold the nylon sheet over it and bind it down. … Buy a bus with removable carpet, then you can just hose it down as well. Sure, you could do that, or you could use the right vehicle for the job.

There are many different rear door types and sliding side doors on the side that provide ample and easy access. This isn’t difficult or complicated. Until you want a pallet of something. Would be nice if that van had a removable roof so they could just drop it in there 😉

What it comes down to is that trucks are versatile and people like them for it. If you don’t see utility in having open access, then that’s fine, but a lot of people do.