I'll provide a general overview.
While bathing scenes are common in the TV series, certain films use them as more distinct plot points or creative sequences: Doraemon: Nobita's Little Star Wars (1985) Shizuka Bathing Nude Scene In Doraemon
: Recent productions have made these scenes less frequent or have replaced them with other characters, such as Nobita’s father, to maintain the "accidental entry" joke without the controversial elements. I'll provide a general overview
: They primarily serve as a comedic "accidental peeping" trope common in older anime, used to highlight Nobita’s clumsiness or the unpredictable nature of Doraemon’s gadgets. such as Nobita’s father