Aging in Japan

One of the things that struck me in Japan was the number of elderly people. It seemed very noticeable. In any case, this might be a glimpse of things to come in the US, though nothing looks anywhere near as grim here as the picture in Japan:

At the moment, there are more than three people of working age to support each person over 65. In 2055, that figure will have fallen significantly. Roughly speaking, there will just be one younger person to support each pensioner. . . . .