Sorry mate.
Was having one of my dyslexic moments.
(Found your hypothesis interesting being interested in Maritime issues.)
What I noticed with some of the the American FA's was not their age but their bossiness.
After deciding to visit the ladies after the plane had landed I left the door open in my haste to depart the aircraft, afraid I might hold people up.
An FA was standing nearby & barked 'door' at me.
I apologised meekly like a scolded child & returned to close it.
On another occasion, being smaller than average in stature & sometimes having difficulty putting stuff in overhead lockers I looked at the female FA to aid me. I was put in my place very quickly & told to manage it myself, mind you these lockers were designed a little but better than on this side of the pond for little people like me & the task, to my surprise, was manageable.
Still I was surprised at her unprofessional abruptness, being used to sophisticated, professionally mannered & polite European FA's. Granted I did notice later she was wearing a large bandage on her hand which did reprieve her somewhat.