The ones I see are both old enough to make death a real possibility. Of course, I am old enough that it would not be a super tragedy if I died unexpectedly. I have talked to each of them about it, but I see it like any other situation where other people are involved - people move, die, have life changes themselves and so forth. One grieves and goes on. It may the one area I see that is like real life. There are no guarantees and permanence is an illusion.