They get made in different ways, also for different reasons.
(1) It might be you're offing someone on purpose.
(2) It could be a slight, like people taking in what goes on inside when you have a right to privacy.
(3) It could be only 1 or so big things.
I do #2 and #3 in a way, and most everyone does #1.
People in Their 20s
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People make the mistake to neglect their health, which may be a bigger fallacy than withdrawing from a course in college.
People in their 30s stop to look back and wonder what just happened and what caused it to be that way.
Money can make you or take you.
They give up.