That's interesting. In my science classes, and several others past level 12, instructors did and returning for CE, still do use fe/male. I'm wondering if this is regional, because a. there are plenty of military bases in my state and surrounding, b. plenty of medical university hospitals, c. plenty of elderly. What I'm getting at is people get into a habit of speaking a certain way at work, and it does spill over into everyday speech, unconsciously, especially when others speak similarly, and if they don't, seldom raise an eyebrow, let alone a fuss.