Do you notice that a lot of television writers still love to use "Soap Box Derbies" as plot lines? Show after show about kids rummaging through garbage to build the ultimate go-cart and then they all get together at the top of a big hill on Saturday to see who is the fastest.
Has anyone under the age of 40 even built a Soapbox racer? Has anyone seen any kids doing this on a weekend in the past 20 years? Not me. I guess it must make good TV.
When I was growing up it seemed like every other TV show featured an apartment with one of those beds that folds up into a wall closet... they don't use those anymore. Remember? People would accidently be laying on the bed when it suddenly folded up into the wall. Hilarious (for 1970).
And why won't unicycles go away? There is NO advantage on any level in riding a unicycle. You don't get a favorable return from the gears, you can't coast, even when you see "Park City TV" and some extreme dude is riding his unicycle on steep cliffs, the unicycle is a hinderence, thus making it extreme. Unicycles are novelties for people who wish they were clowns.