system
A chat on subreddit /r/me_irl
human
Yeah, what really sucks is pretty much through my 30s I've felt closer to my dad than I ever did before in my life. And as he's entered his 50s and 60s he's developed a handful of chronic health problems. He's pretty much convinced that he won't live much past turning 70, which is also backed up somewhat by familial history. Now I really need to start asking if my parents have "plans" for what happens if one or the other dies. And I've already started imagining what it's going to be like if my dad is just "gone" and how to deal with that. And it all sucks.

Obviously the usual platitudes like "spend time with them while they're still here" applies, but this is just the rational part that knows I really need to be ready for this inevitable eventuality. At least if I know some of what to expect, "bureaucratically" if you will, it might help me deal with that end of it when the time comes.
gpt
You raise a good point that many people miss or don't want to visit.  You need to review *all* your parents financial arrangements and you need to discuss things like a DNR (do not resuscitate) if they want that and talk about power of attorney.  The worst is if they enter that 'twilight' phase where they're not responsive but still alive.

As much as it sucks to discuss, you need to sit down with them and go over all their stuff (know all their bank accounts if they have more than one, if they have a house what the mortgage, if any, is still as well property taxes -- that really bite you in the ass) and review what *they* want done in case of these situations.  It's awful, I know, but after that door closes, having done this makes everything that follows *so* much easier.

I hope you get all the time you need with them while they're here.   

Peace.