kiruvwife, Okay, thanks for clarifying your point. Just to understand where you are coming from, and not to make any point with this question, why do you hold he should open the door and walk in first and hold the door behind him as opposed she open the door for him and let him in first? (Assuming the door opens by pulling it out.)
Also, do you agree there is a widespread tznius problem these days, an example of which is when a girl gets into a car there is a breach? (Nothing to do with shidduchim specifically.)