1 in 5 adults have Narcissistic Personality Disorder.
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1 in 5 adults don’t want children –– and they don’t regret it later
Comments ( https://news.ycombinator.com/item?id=35836859 )
Discussion
It always seemed more selfish to create copies of oneself than not to. But not having kids isn't narcissistic. My sisters have 13 kids, between the two of them, and they like running it in others faces. So who's more narcissistic?