What advantage does a postage stamp have over a dog owner?

A postage stamp has the advantage of being able to deliver messages across long distances without the need for supervision or care. Unlike a dog, which requires attention, feeding, and exercise, a stamp simply needs to be affixed to a letter and placed in a mailbox to fulfill its purpose. Additionally, a stamp is cost-effective and reliable in ensuring communication, while a dog may not always be dependable for such tasks.