Why so many of the world’s oldest companies are in Japan

The country has 33,000 businesses at least a century old. How have so many survived – and what does it mean for Japan’s future? Japan is changing: a rapidly ageing society, a record-breaking influx of visitors from overseas, and more robots than ever. That's where the country's young people come in. Gen J, a new series by BBC Worklife, keeps you up to speed on how the nation's next generation is s