For Ms Sara Zeff Geber, the “aha moment” came a few years ago as she listened to a friend recount all the tasks she was taking on to help her increasingly frail 91-year-old mother.
Ms Geber, now 74, realised that there was no obvious person to turn to if she and her husband needed a hand as they grew older. “Who is going to do this for us?” she wondered. The disquieting answer: “No one.”