There’s an illuminating anecdote in Ben Elton’s autobiography What Have I Done? about Elton chatting to former PM Jim Callaghan at a Downing Street Party in the 1990s. A waiter comes along and asks the 1970s PM to budge up because he is blocking a door. Elton notes that this is the way of the world. Even if you’ve had the top job you eventually just get in the way of waiters. It happens to all of us.