Losing a pet can be very hard for children and their parents. For youngsters, it's often the first experience of death. Some become very upset, especially if their grief isn't taken seriously by their parents. In another case, the parents were upset because their child appeared not to be and they thought he was callous. He also wanted to dig the animal up to see what had happened to it.
Society underestimates the amount of time it takes to get over the death of a pet.
If a pet lives with you 14 years, you are not going to be over its death in three weeks. It's like family and you wouldn't expect to get over their deaths as quickly. Be gentle with yourself. Sometimes one partner will not talk about it while the other wants to. I provide the shoulder.