Recently, Charley Pride's son, Dion Pride, reflected on the passing of his father and said that the grieving process has been rough. Dion said, "You know, we're still grieving. It's a little tough to have any kind of celebration right now because it's still so fresh." He continued, "The [concerts I perform] are part his songs and part mine, and it's just overwhelming how many people he's touched with his music." He added, "Not just with his music, but as a person, too. That's the part of him that I always like to stress: What a great human being my father was. What a great man." Why do you find it harder to grieve over the loss of a pet versus a human?