Suicide is always a difficult concept to discuss, because there are a multitude of reasons and motivations as to why an individual will want to end their life. Of what is known about the general people who tend to commit suicide, between 86-98% of them in most studies have some sort of disorder, such as severe untreated depression, bipolar disorder or similar kinds of hardship in their life. Rates of suicide have also been rising considerably, but the worst affected are those in the young adult age group and particularly men:
There have been two proposed explanations in the general literature for why men commit suicide more than women. The first is that men are more likely to use extremely risky and violent means of killing themselves, but that have extremely high rates of success: Shooting oneself, jumping in front of a train, slitting wrists and such forth. Women are less likely to use violent means and will use less immediately lethal methods, such as attempted drowning, overdoses on drugs and similar. This means that while more young women attempt
suicide, far less women are likely to kill themselves than men (I believe that men are two to four times more likely to succeed at a suicide attempt than women are). The other suspected reason is that men are less likely to seek direct help about their mental problems, due to social pressure that generally mean men are not as expressive about how they are feeling. It's probably likely that it's a combination of both factors that may be the best explanation for the disproportionate number of male suicides per year vs. those of women in equivalent age brackets.
Suicide itself though is often viewed, by those left behind in the wake of an individual who ends their own life, in a variety of different means. One common response, particularly in the case of those who commit suicide without a note (although notes are common in about 1/4 cases), is disillusionment about why someone wouldn't want to live anymore. Why couldn't the person have come and spoke to them about it? Was it any part my
fault? The other most common response is anger at the individual who killed themselves, often because of the view that someone who kills themselves has done something dishonorable or especially hurtful to those who have been left behind: especially family.
I wonder often, about those who do go through with it, as to if there is a point where someone is so sad that they do not feel as if they have any other option to get out. Often, this can be because of untreated conditions such as severe depression, bipolar disorder or schizophrenia - but are there just cases where someone is not in a clinical state of depression or similar, where they just feel as if there is no further point to life or living and they just end it all? Does someone who is so sad, consider the people around them that they would leave behind, perhaps explaining why 1/4 (IIRC, I'm not sure on the exact statistics) individuals leave a suicide note? These are frequently apologies, last requests and in some particular cases, attributing blame.
It is often the case that a person kills themselves as a means of revenge for perceived slights from the world around them as a way of inflicting guilt and pain on those who tormented them in life. I view this as rather reprehensible and pointless, there is a better means of doing that and that's to make yourself as successful or more-so than them. On the other hand, some cultures such as the Japanese do not regard suicide from a case of dishonoring yourself or others (the family/business) as the wrong thing to do, perhaps explaining why the Japanese have one of the highest suicide rates in the world.
Perhaps in general, it is increased pressure, stress and a faster lifestyle today than in the past that contributes to rising suicide rates (though the disproportionate number of men, three times as much in New Zealand in a more recent analysis) than in the past.