Last month, Japan’s internal affairs ministry released its yearly data ahead of Respect for the Aged Day. People aged 65 and over now make up a record 29.6 per cent of the population. But the figure I keep coming back to was this: 9.43 million Japanese workers were 65 or older last year, about 13.8 per cent of everyone with a job. Members of Japan’s older population are not simply retired. A large part are still at work and some of those people are the ones businesses depend on. The Asia-Pacific...