Package placement

Why do some of yall put no thought into where you place the packages? Many times I am dropping off an order to a house that has already been visited by another driver. I see packages left directly in front of screen doors or packages so far away from the front door. Genuinely, why? And these dropoffs are non-problem houses (no code required, no longass gravel driveway, easy drop off, etc). I've also been the recipient of having my door blocked by packages many times.