It is a big problem because the younger generation becoming disenfranchised leads to worse outcomes all around. They can't take care of their own family because

It is a big problem because the younger generation becoming disenfranchised leads to worse outcomes all around. They can't take care of their own family because society forces them to work longer, worse hours to make up for the aging workforce. And the less wealthy older generation can't retire. Japan internally isn't nearly as mechanized as you might think because a lot of their backing technology is ancient and requires the older generation to understand how it works.