+1 to getting experience now - to start with finding a good friend and doing things together to build confidence.
+1 to the drinking.
If they don't yet then it's worth thinking about introducing say wine spritzer so they get an idea of the effects.
Do make sure they are aware of dangers.
There are rubber bottle stops they can put in drink bottles to help avoid spiking for example.
Most of the awful stories come when someone gets separated from a group. At Freshers they are less likely to watch out for one another. Many places have introduced changes but excessive drinking is still a problem.
My DD knew her limits and would have one drink before going out ( so she knew what was in it and how much she had) mostly to make it easier to put up with others who were silly from consumption of alcohol

but then abstain. Once she'd made some good friends to go out with in a smallish group she was much more relaxed.
+1 to having money stashed away for taxi and a phone number for a reputable company.
Make sure that she knows that whatever the situation if she's worried then to call you. They can think it's a let down to call home or you will be annoyed if they've got themselves in a mess. Independence is one thing but safety comes above anything else.
Get her to check what the local security arrangements are. Many SUs have emergency numbers staffed by volunteers, run mini buses in certain areas or there are emergency numbers for campus security etc.
Preparing for dangers can make it all seem a little more scary than it is but still better to be prepared I"d say.