I've got mixed feelings about this issue, which I'll be confronting in a year myself -- but I lean towards familiarizing your daughter with the effects of alcohol. Not only can that help her avoid drunkeness itself, but it is a major line of defense against sexual assault. While you're doing that, teach her to stick to drinks she's watched being made, and to never take a drink from a stranger outside of a restaurant server.
I have no doubt you've inoculated her against peer pressure, but it couldn't hurt to reinforce that a bit, too.
I have no doubt you've inoculated her against peer pressure, but it couldn't hurt to reinforce that a bit, too.