“They must have been raised by wolves”.
I have also seen women flabbergasted if a man holds the door open or offers a seat. That being said, I have taught my daughters to expect to be treated like a lady. If not, then they are not worthy of their attention (I am hoping this message stays with them during their teens/early adulthood).
I suspect it will. Those early formative years are so important. I can remember my sons opening doors for women when they were young. Sometimes the women would not say thank you. I always told my boys that it’s ok, you still did the right thing.