Yep, that's what I can't figure out.
I would think no matter how depressed you are you'd find a way to hang on for your kid knowing that killing yourself could fuck them up for the rest of their lives
WTF did this guy have to be depressed about that was worth killing himself over. He had possibly the best job on the f'ng planet making millions travelling the world, eating and meeting people.
I don't get it either. Suicide has never been an option that my mind went to when the going got rough.
But depression (and mental illness, in the larger sense) has no rhyme or reason to it. It doesn't "make sense." None of the rational reasons for NOT killing yourself (e.g. hanging on for those who are depending on you) matter in the thought process of someone in the grips of severe depression. Those considerations don't enter into the picture like they would for a mentally healthy, rational person.
Some things just don't make sense. If you try to make sense of something crazy someone does while in the throes of mental illness, you'll just make yourself crazy and melt your brain.