When I was 20, I was in first year University, living in residence. It was just starting to change, but I think the norm was for the guy to ask a girl out on the date. At least that is how I remember it. Dates were usually attending activities on campus or accessible by public transit. A good first date was going skating, skiing, or hiking and then after we would grabbing something to eat. A kiss on the first date was on the cheek. I never really had to think about introducing my date to my family as I never attend University in the city my family lived in. But generally my family knew who I was dating. Sex. I was in second year before that ever happened.