If I were a relative or close confidant of President Biden, I'm pretty sure I’d give him a hug, thank him for his service, and tell him to seriously consider walking away. I’d tell him that after a life of service, he can pass the torch with pride, with dignity, and with grace. Someone probably should have done this months ago, out of love or duty, and out of the concern that Biden's health is likely to get worse in coming years.
Biden has obvious strengths, chief among them experience, wisdom, decency, civility and the empathy that comes with crushing loss. It may be that those in his inner circle, knowing what he's made of, can't bring themselves to question his strength and resolve, even in the face of obvious decline. Sure, his family knows him better than we do, but maybe they can't see what we see from afar.