A dog can have a good life without loving balls or squeakers. Some prefer sniffing, a short search game or quiet time with you. Do not keep putting a loud toy in their face until they react. If interest in play changed suddenly, or your dog also eats less, moves differently or seems uncomfortable, ask your vet to check for pain or illness.
Start by watching what your dog chooses during an ordinary day. Do they investigate scents, enjoy an easy food search or engage briefly when a person moves a soft toy? Offer an option and let them walk away. The article on play breaks can help you see whether an interaction is welcome, not make any dog play a particular game.
Choose safe items for your dog's size and chewing style, supervise a new toy and remove broken parts that could be swallowed. Dogs Trust describes enrichment as a choice tailored to the individual dog. A vet can advise on suitable activities when sore teeth, joints or other health issues affect what they can do. If they simply prefer resting or sniffing while otherwise well, that is information about their taste, not failure.
Today, offer one easy activity and notice whether your dog returns to it. A relaxed dog who can choose not to play is not missing a required lesson.
Sources: Dogs Trust on individual routes to a happy life, Dogs Trust on varied enrichment, VCA on pain-related behavior changes.