‘How do I end a call?’: the elderly Japanese people determined to master smartphones
Yasushi Nishioka shows a student how to use his phone](https://i.guim.co.uk/img/media/cd8ffdf8841a71ad0eca10ef97f0ff16067b7a16/0_0_3106_2112/master/3106.jpg?width=445&dpr=1&s=none&crop=none)
Yasushi Nishioka