Because in much of the country it is incredibly rare to have a package stolen off of a porch. For example I have never had a package stolen nor do I know of a p

Because in much of the country it is incredibly rare to have a package stolen off of a porch. For example I have never had a package stolen nor do I know of a person who has had a package stolen off of their porch. The person sending the package can choose if the package is left at the door or if it requires a signature. Amazon and others like them have decided that the increased convenience is worth the occasional cost of reshooting a package.