"One of the best things about owning a brain is how you often seem to phase out of normalcy and briefly see your culture with a weirdly objective frame of mind. At some point every child realizes money is made up of slips of paper with no intrinsic value, and wonders why aloud. So, too, will children ask adults what's up with shaking hands, or putting your fork on one side of the plate, or saying "Bless you" after a sneeze. Parents apply the glue that holds a culture together when explaining to a child that his socks must match, or that punctuality is paramount, or that picking his nose in public is a terrible habit. When a parent tells a boy he shouldn't play with dolls, or a girl to wait for a boy to ask her to the prom, they are enforcing norms. When a kid asks, "But, why?" she is rightfully bringing to the attention of the adult world that all this stuff is just made up and mostly arbitrary nonsense often clung to for some long-forgotten reason. That feeling you sometimes get when you snap out of your culture for a moment, when the operating system crashes and slowly reboots, has been the subject of literature and drama for thousands of years."