Remember when "Kilroy was here"?
If you did, you would know it was a fad for American troops in World War II to daub this on walls all over Europe. Nobody knows who the original Kilroy was or where it was first noted but it often seemed to be already on the walls of towns when Allied troops rolled in.
The same era saw the fad and fade of swallowing goldfish and the Zoot suit. In the '50s the rotation of fads included pet rocks and spud guns, then in the '60s it was lava lamps and tie-dyed T-shirts.
Since then the speed and turnover of fads has gathered momentum and they seem to come and go in a flash with little time to absorb the fun. The digital age provides us with a dizzying parade of fads that are welcomed with the clarion call of "is this a thing?"
It certainly seems to be a First World "thing" that comes with moving beyond the demands of day-to-day survival. Once Maslow's hierarchy of needs has been met then people have time to consider the creation of fads, whether it be in music, art, fashion, film, furniture or gadgetry.