“When you go out to date, there’s very little you can actually see”
I disagree. In fact, when sitting in the girls dining room, with your parents in the next room, you are on your BEST behavior, and only say what you were coached to say. 80% of the time, the conversation follows a basic script, with the girl doing most of the talking.
OTOH, take a boy, put him in traffic or a resturant or out for a few hours, and you’d be surprised at what you can learn.