Many centuries ago man discovered that the hair he had all over his body was a leftover from his time as an ape. Apes are generally considered ugly and repulsively hairy, so one would think that so was the hair on man. This is strangely enough not the case. Instead the hair that is left from the ape period (most of which is growing on top of the head) is worshipped and cared for all over the western world. It is generally the female who spends a lot of time and money making her hair look special and sexy.
One wonders why everyone doesn't just cut the hair off, the technology is there. Perhaps too many hairdressers would be put out of business and someone made a law againts it.