That’s a good question, probably a million answers, I think everyone has thought about killing themselves at one time or another or even a few times, for some it passes for one reason or another, they are the lucky ones, for others it becomes a habit and addiction they find peace and comfort thinking about being dead.
Well being dead does solve your problems that you have while being alive, It is a sure fire solution and very final, most think about it like pushing the button starting a nuclear war, they would kill themselves and everyone around them so they don’t push the button and continue to think about it.
Just because they have this fixation on dying and don’t think much of their lives doesn’t mean they are heartless they care more of other’s around them then themselves.
That’s just one reason of a million.