I guess most religions caution against getting too self-absorbed or materialistic in life. It's a common trap we fall into, and it's an awful place to find yourself when you're on your deathbed.

As I get older, I think more about the people who will be left behind once I'm gone. Will they be all right? Will my passing cause a lot of drama? If they still really need me, I will fight to stick around a little longer, even if it entails some personal suffering. It'll be over soon enough.

I guess if I'm in the middle of some personal quest, I may also fight to see it through before kicking the can? I dunno.

Otoh if my living on creates a greater burden, I might want to go sooner rather than later?

And I try not to concern myself with what happens to me personally after I'm gone. Whether you're religious or atheist, let's face it. Your fate is out of your hands at that point.