Teenagers and young people more often than not don't date anymore. If they *did* date, that wouldn't be so bad. But they don't. The old model of boy asks girl out, picks her up, takes her someplace, ideally pays, and brings her home is in many circles (especially more affluent suburbs) as dead as poodle skirts.
What many young people do nowadays is "hook up." They go out or to parties in groups. They're all "just friends with benefits," and have casual, no-commitment sex with their "friends."
I've seen the attempts at courtship in homeschool circles, and what it translates into in practicality is the idea that girls should essentially stay at home, live at home, be completely sheltered at home until some guy negotiates with dad to marry them. It's completely unrealistic because it doesn't take into account how to teach girls to survive college, living on their own, dealing with the business environment with parties, people cruising for sex in the office, etc.
You are exactly right in that today's youth does not date. In fact, that term has practically fallen out of the lexicon. The positive side of this is that in a way it fits very well with the first piece of advice from this article, to develop friendships first. Casual sex has always been a reality for some teenagers, but at least now there is a much stronger focus on friendship and developing a larger social circle. It seems to me that girls (or guys) who want to remain chaste actually have it easier now, in a way.