Curiosity about death is, as far as I can assume anyway, a much lesser reason for actually committing suicide.
As for my own personal opinion on suicide... well this may get a bit personal, I'm not sure yet. Just gonna type and see what ends up getting written.
Back in jr. high I contemplated suicide. The reason was I just wanted it all to end, I didn't want to have to deal with the world anymore. I was bullied directly by 3 boys, and the rest of the class wasn't exactly kind about it either. After being stuck with these same 30-ish people for 9 years of my life for six hours a day, five days a week, for most of the year I was just tired of it. I was disliked, and even if I tried to change the image ingrained in their minds isn't going to alter. The "it could be worse" didn't reach me, I didn't care if it could get worse, at the time I couldn't deal with it at that level, why would I even want to contemplate it gettign worse?
At that time the only thing pulling me through was one thought. I put myself lower than others, I don't want to be a bother (hence why I never told anyoen about the bullying). My death, though it would be easy on me, would be harsh on my family. We may fight and argue but they still care. I couldn't take that way out, I'd forever be the self centered girl who cared more for her own misery than the misery of others.
Okay, shit just got way to damn personal here, so I cut out the next two parts. I'll review them though
In conclusion? Suicide only seemed appealing to me when feeling completely trapped, nothing was changing and it wouldn't for a long time.
It never crossed my mind during my abusive relationship,
The closest I got to any thoughts about suicide since jr. high was when my mind wouldn't stop replaying events that made me nauseous. I was upset and sick, but never enough to want to off myself.
Finally, in the case of someone very close to you falling into insanity: the times of extreme depression and feeling of uselessness, more than any bulling could bring forth, would feel useless to even off yourself.
TL;DR: If it's the world against you it's more appealing to die and be free of it,