I don’t mean just returning your shopping cart to the cart area, but actually sliding it back in. At my grocery store, some people half ass stack it back in or don’t at all. This drives me nuts because when I come to return my cart I have to fix the mess before I can return mine. Plus, I don’t want the workers who collect the carts to do any more work than they already do.
I caught this one guy who was returning his cart and I had to wait until he was done. Instead of stacking his cart, he just left it there in front of the stack and I said, “C’mon man!” He was surprised and said, “Oh!” then immediately stacked his cart.
If it’s like an outdoor shelter, I never bother. Haven’t even thought of it until now. If it’s actually inside the store, then there’s limited space and it should definitely be nested.
Edit: I guess on rare occasions I’ve seen a shelter that’s pretty full and had to nest it just so it’s in the shelter. They’re usually almost empty, though.