I have a memory that, on trains, there would often be a person with a disability in the first car doing an impression of the conductor
Also, for a time there was a meme like, Why do ugly couples make out on trains?, but I do not see that anymore either. Or, I also have a memory that women putting on makeup on trains became a social problem as unseemly, but I hardly see it anymore. By the way, the reason you hardly see people opening newspapers or thick manga magazines to read on trains anymore is simply that now everyone is playing games on their smartphones, surfing the net, or reading e-books, so that has almost gone extinct. Also, in the hanging ads on trains for weekly magazines, there used to be female hair-nude photos (nude photos showing pubic hair), and there was talk that a novice Buddhist nun in training, with a pained expression, would look down and avert her gaze and it was pitiful, and Happy Science campaigned to eradicate hair nudes, but at some point I stopped seeing them. Also, people started saying things like Bunshun Cannon (the scoop-brand swagger of Shukan Bunshun from Bungeishunju), and weekly magazines began to boast. In the past, so-called weekly magazines were tasteless media carrying deepfake-like, low-grade information from a different dimension, and although there is a saying aru koto nai koto (true and untrue things), it felt like they contained nothing-but-non-things, writing nothing but things that were not there.
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.