I remember wearing a girdle in high school and going to work. Mother made me! You were not properly dressed if you did not have on your girdle and hose. That was back in the 60's.
In the 90's I worked with a woman in her 70's that still wore her girdle every day to work.
I have thought about buying one to see if it would help my back feel better, but so far not found one big enough!! LOL!!!