hikikomori
The 80 50 problem
Hikikomoris who do not escape isolation or have been in isolation for decades are aging in the statistics. These aging Hikikomoris cross a threshold known as the 80-50 problem. The "50" refers to the age of the sons and daughters who are in their 50s and being taken care of by their parents in their 80s. They are usually not only financially dependent but also when it comes to their nutrition. This emotional dependency is often attributed to the close relationship with the mother, known as "Amae" in Japan, which means being loved and cared for by the mother.
The relationship with the father is often weaker, as fathers are usually less present at home due to the pressures of the work society in Japan.
"Kodokushi"
Some Hikikomori die alone, sometimes unnoticed for months.
There is a term for this called "Kodokushi," which translates to "Lonely Death" or "Isolation Death." The term Kodokushi not only refers to the death of older individuals, but also to that of Hikikomoris who die unnoticed in isolation without suicide or external factors.
In many cases, the passing of a Hikikomoris parents ends in a particularly tragic way, as decades of dependency lead to the individual's own death due to malnutrition, sadness, and helplessness.
First, the money runs out, then the food, and as a result, some elderly Hikikomoris die alone in their parents' house.