Well, that's the trick. I mean there are obviously a lot of details and varying conditions and possibilities.
But that doesn't mean they are all useless and should be in an old folks home.
To more directly answer your question.
Old people don't have to take care of even older people. I mean the whole point is to NOT cut them off from the rest of society.
It needs a social component and simplicity.
However, simpler tasks are often more easily automated and people generally avoid social interaction it seems.
I get the feeling that people would rather a hot coffee vending machine than talking to ol' Carol or Bob at the mom & pop cafe.
Some random ideas:
- Working the coffee shop on the ground floor of the corporate building.
- corporate internal mail
- storytime Reader at the local library
- non-profit business pushbike/skateboard/scooter store
- campus bus service