I see this many times and it breaks my heart. Old people have limited strength and energy. They should no longer work after this time. All they have to do from now on is rest. Loving his grandchildren, if any.
However, their desperation forces them to work. How far is it to work? The whole world must find a solution to this. Above-average opportunities should be provided to everyone over the age of 60. If they do not have a house, they should be given a house.