|American Shorthair - highly suitable for seniors. His name: "Tiger"|
However, in general the retired person will be less active and seek a quieter lifestyle with minimum demands. That encourages me to think of cat breeds that are similar in character such as the Persian, British Shorthair, Ragdoll. Of these three the Brit is probably best as the others, particularly the very long haired Persian requires regular grooming to maintain the coat. The Brit SH has a fabulous coat to stroke - very therapeutic for an older person.
As to the Persian I would chose a traditional Persian as it is likely that there will be less expenditure in respect of veterinary bills. Two other cats are part of the Persian stable of breeds: the Exotic Shorthair (shorthaired Persian) and the Himalayan (pointed Persian). They are equally as good as the Persian.
The Russian Blue also comes to mind as a cat that likes indoor living. Cats that are suitable to full-time indoor life should be suitable for seniors as well. A lesser known cat that seems to shine is the Pixie-bob. They are solid performers, good with children and quiet. I would recommend this breed as one of the top cat breeds for seniors.
In fact I think a quiet cat is probably an attractive factor in a cat breed for an elderly person. The British Shorthair, already mentioned falls firmly into this category.
I don't think a senior requires a cat that is overly demanding, either. A degree of quiet independence is attractive. In that vein, the Maine Coon comes to mind too although some maintenance is ideally required. And we cannot forget the solid American Shorthair. This cat requires little grooming by their human companion (another important factor) and is quiet. They are gentle with seniors and good with children. The American Shorthair is a popular cat breed too, in the top 10 of all breeds.
The American Shorthair is my individual pick for senior members of society. This is not meant to be a comprehensive list by the way. Also what I am saying here does not exclude the beautiful random bred cat or other individual cats of other breeds.