And I've made it a habit to leave off decisions until the last possible second in order to keep my options open. Suicide would go against all that with its finality.

Other than that, basically the reasons you gave. Some people would be upset, it would create a big uproar, and it just seems so... troublesome. Not really even worth the effort.

I don't believe in any intrinsic meaning to life, other than whatever one decides to make of it. I don't know what I want from my life, but so far it mostly consists of books, video games, and hanging out with friends. It isn't so bad... I'm happy most of the time. Love, family, devotion to a cause of some sort are among the other things that could bring happiness and meaning.

There's not much joy in me for myself, let alone to share, but I will say that whenever I am already depressed, I seek to do all I can to stay that way, and engage is all sorts of self-destructive thought processes. I'm too pragmatic to actually do anything self-destructive, but I'm good at keeping myself locked in nearly suicidal depression, and a part of me finds perverse pleasure in this.

Most of all, what helps is probably just not thinking about anything like this, and focusing on other matters, whatever they may be. That's what I try doing anyway, and other than frequent bouts of depression and a general apathy about most things, I seem to be okay lol. Not sure how well any of this answered your questions... But your post made me want to share something of my feelings.