I don’t see crates often because our society has cardboard boxes, which I see all the time. In a society without cardboard, crates would be more common.
It was obvious to me well before I finished act one that the most interesting thing I’d find in crates were lock picks and disarm trap kits. Hence why I stopped checking them. I didn’t need to go through the game multiple times to reach that conclusion. If you found a ring on a skeleton (a type of body) and thought from there that you needed to check every crate and barrel that isn’t Larian teaching you the wrong lesson. You drew the wrong inference. Thats on you.
