Amazon leaves the package on your doorstep because it's slightly more convenient for you and WAY more cost effective for them than the old-style "we missed you; come pick it up at our location in a day or so" note. No physical location in expensive areas, no repeat deliveries, no hauling & managing packages coming back on trucks. When you buy something from Amazon they have not delivered it by throwing it on your doorstep. Ironically we never would have taken delivery of expensive purchases like this back in the day when the world was so much "safer"...