You ever see one of those old guys who spend their days wandering the town with the soles of their never weary shoes?
Their history tends to be a mystery. Primary family most likely already buried in a plot where they’ll be in a few years, maybe months, or days. All other relatives no longer relative. Left alone with the sun on their backs, and the memories in their minds. And if they live in a house, you’ve never seen it. Or if they live at all, you don’t believe it.
And like yesterday and hopefully tomorrow, today they’ll walk and study the alien replacements of their youth, and wonder what the hell happened.