Hey, they were hot back in the 70’s, when they first started flying. :)
My wife and I have a friend who has been an American Airlines flight attendant for 36 years. She still looks good - but she’s obviously the exception. Other countries’ airlines make them move to office jobs at 30.
I recall hearing, many years ago, that the airlines retired stewardesses at age 32 or when they got married. Such policies would be illegal today in America.