I think I have a better explanation: he's 82 years old. If he's not in exceptionally good shape, the job of a formal head of state may be too much even in smoot

I think I have a better explanation: he's 82 years old. If he's not in exceptionally good shape, the job of a formal head of state may be too much even in smooth times. Japan has been printing money and economy has tanked for 35 years, but still life is good for the Japanese.