Yes, they were. I remember when I went through training, the first day of class, the instructors made all of us stand up and started making statements like, "If you are a man, sit down.... If you are older than 30, sit down.... if you are married, sit down...if you weigh more than 130, sit down..." At the end of this demonstration, only a couple were left standing. She was trying to show us how strict the hiring requirements were for flight attendants/stewardesses back in the 60's and 70's. My graduating class was quite a mix, though. Young, old, men, women, different ethnicities. It has changed dramatically.