I really understand how people with otherwise good lives get to an age where they no longer want to live forever.

I kinda take solace in this a bit. I'm 38, got young kids, and I don't generally stop to think about my mortality but when I do it's always with the thought that I'd miss stuff, mainly related to my kids and them growing and us all being a family. But presumably the rigors of life just become life, and you get to a point where you're okay saying "Welp, that's enough!" Perhaps I'm just rationalizing my future fears or something, I dunno, but that's my hope, that I'll reach an age where I can comfortably say I think I've seen it all, or seen enough that I can go peacefully into nothingness.

Obviously the darker alternative is that I've seen enough pain and I can't take anymore. But I am not here for that! Good feelings only!