Parents have an awesome responsibility here...for years you raise them covering the bases keeping them safe and checking on and verifying to and from school, after school events, friendships, other adults and their connections online and then their upper teens and privacy is paramount to them. You don’t want to fill them with paranoia and fear so it’s addressed but not the unnerving details. Preparing them for reaction time and giving them tools to use in case they are in a situation. Self defense classes strengthen their sense of and ability to react. Mace, whistles alarms also good to have in your possession. I have addressed several things with my 18 yo daughter just starting college and she has also voiced her own ideas related to her personal safety. One thing that did catch me off guard was parking lot safety she was not really aware of this behaviorally. I just took it for granted she knew all about it, but no she didn’t. Simple maneuvers park up close to entry of business, park where it’s well lit, keep your doors windows closed/locked when in car alone, observe other vehicles/ people near you and at or around the car. Use security to walk you out at night or if you feel someone bothering you is hanging around.