Quicksand used to figure prominently in cartoons and movies, but it no longer does. Dan Engbar examined why.
Engber became fascinated with what happened to quicksand. He found a source of data—compiled by, of all things, quicksand sexual fetishists—that included every movie scene that involved quicksand from the 1900s to the 2000s
Of course there are quicksand sexual fetishists. Of course there are.
Anyhow, be sure to see this comment for additional thoughts on why quicksand disappeared.