What retired people lack most should be the courage to fight loneliness, or loneliness is the most important thing for the elderly. It is also possible to find him a companion, friend, chess friend, card friend, chat friend or net friend. At least in the direction of getting rid of loneliness, he can do things that he was interested in before but didn't have time to do, such as traveling with him to places he wanted to go, or other things that can make him feel meaningful. At least this will solve loneliness. It is worrying if he is in poor health, but it is better to let him go out for exercise than to stay at home. It is dangerous not to let the old people stay at home for too long.