I think there's a part when you sign your soul to the devil and start working in Los Angeles that you also sign away that you could be a human being in anyone's eye. You're like a robot!
I get a stack of scripts, like, once a month, and most of the time, you find these placeholder girls that are there to provide a bounce for the male character. So we know he's funny because she's serious and she's mad at him. We know he's strong because she needs saving. So really, her job is to validate this personality trait of our hero or male.
I seem to be stuck in the '60s, and my favorite music, cars, and women's fashion come from that era. And the sense of social rebellion. It was a good time for a lot of things.