I grew up with this crazy upbringing of living many places and always being the new kid in town, not like a service brat where you're always going to school with other new kids in town. I was constantly arriving in small towns and going to school with kids who'd been together since they were in kindergarten.
Churchill faced his own diminishing capabilities and increasing irrelevance by maintaining the sense that he was the only one who could solve whatever problem was before him. He was very often wrong, of course, but then he had spent so much of his life overcoming appalling mistakes, disasters, and rejections.