On trains, there used to be the term "ekishō-san" for the conductor, but before we knew it people had started calling them station staff or station personnel.
On trains, I’m sure there used to be the word “ekishō-san” (station conductor) as the counterpart to “shashō-san” (conductor), but before I knew it everyone had started saying station staff or station personnel instead. And, sure, some people might go dredging up, from internet search results and such, examples like how in some local private railway lines that kind of word was used, or how a Kansai-region Johnny’s idol (a Japanese male idol from the Johnny’s talent agency) said “ekishō” on TV and got treated like he’d coined a new word and people teased him like “what a genius!”, and then try to force the theory that it’s just regional variation/regionality or a mistaken coinage (some weird eccentric quirk), but the author is from Inagi City in Tokyo, both parents are from Yokohama, the grandparents are Yokohama people too, and the “ekishō-san” that exists in my memory was not a coinage nor some almost-coinage eccentric word; I clearly remember it as a word that appeared frequently in picture books and children’s library books and was a familiar, well-loved term.
This case is part of the Mandela Effect case database based on "The Window of Opportunity: A Guidepost to the Mandela Effect — The Ultra-Secret X-Files" by Aoyama Takuto.