What we do in Japan. They don't deliver, you call the delivery service to reorganise delivery at a convenient time for you
Leave it on the porch; if one gets stolen every few years, that's still wildly more convenient than rescheduling most deliveries.
Depends on your neighborhood. Some neighborhoods have a 1 in 2 chance. The footage showed that the culprit tailed the USPS delivery person on foot and waited about 15 minutes.