Yeah, you don't need to loot any of them, but I think most players are gonna at least check all the boxes to make sure they don't miss anything important, because if you're experienced with CRPGs, you'll have been trained to check everything in case there's something useful, and even if you aren't familiar and this is your first one, why wouldn't you check all the boxes for useful stuff? I mean, you need food for resting, and that right there is a reason to constantly be checking boxes.
