YES! This annoys me so much.  After the 1920s-1930s the only women who wore what we think of as corsets (heavy boning and lace-up) were old ladies or people who needed them for support.  Normal women wore girdles or 'panty girdles' (basically like bike shorts with garters), or in the 50s some wore waist cinchers if a tight dress required it, but usually not as a general daily undergarment.  Fats are stupid about everything.