Startup Idea : A better self-supporting nursing home

Older people pay through the nose for care services, or often have to put up with care of a very low quality. Wouldn't it be nice if there was a home/a chain of community-based homes where younger members of the home could contribute to the services/running costs by vegetable gardening/keeping hens for eggs/cooking/washing up/knitting or painting or baking or jam-making to raise funds? This would give occupants a sense of purpose and usefulness and a sense of community, help to keep grocery costs down, keep occupants happier and healthier and give their relatives a peace of mind. A home of the kind would have to attract some younger pensioners in better health, of course, who are in good enough health to help.