[falsaberN1]

Doesn't sound like something exclusive to Japan. Sounds like you are describing my country and it's nowhere near Asia.

[retrochameleon]

Compare an age distribution chart from your country to Japan's and tell me it still seems the same.

Yes, old people are in power in other places too. I live in America. Japan is an extreme case, and the low porportion of younger voters excacerbates the disparity.