Bob, once again you have risen to your weekly challenge and produced another interesting topic for discussion and dissection. I have always felt that some of the ambiguity about the beginning of adulthood is a result of the west's near elimination of any sort of rite of passage ritual. Getting your driver's licence, graduating from high school, being old enough to vote, drink or smoke, graduating from university/college, and even getting married; none of these things provides a clear separation between adolescence and adulthood. To connect all this to geek culture, I believe this is why the Klingons are so popular. They are depicted as being very ritualistic and any important occasion involves a very elaborate ceremony. That and these rituals usually involve fighting, pain, or deprivation.