>What? It is hardly any extra work, you also have walked the same way when taking the cart.
It depends on the store. If it's a very large parking lot, and you're parked at the far end of it, it can be a long walk to get back to your car. If the store didn't bother putting any designated cart-return locations in the lot (which happens a lot), then returning the cart means doubling your walking time. So it really is a lot of extra work, or at least time, so it is understandable why some people would avoid this extra work/time and take the easy way out.
>And it annoys people after you
Yes, but you don't ever see these people; they come after you've left. It's not like being rude to the waiter's face.
It depends on the store. If it's a very large parking lot, and you're parked at the far end of it, it can be a long walk to get back to your car. If the store didn't bother putting any designated cart-return locations in the lot (which happens a lot), then returning the cart means doubling your walking time. So it really is a lot of extra work, or at least time, so it is understandable why some people would avoid this extra work/time and take the easy way out.
>And it annoys people after you
Yes, but you don't ever see these people; they come after you've left. It's not like being rude to the waiter's face.