My parents live quite a long way away. Luckily they have been pro-active by anticipating their needs so far.
When things go wrong they really do throw the system.
Mum fell off chair lift trying to get a spider (v. allergic to bites). In hospital then Dad,(older and frailer) gets a cold. Missed his naps for several days. Dad's cold leads to eye infection in his ONE good eye.WWYD