If you're not already, let's pretend you're a 31-one-year-old single female. You're at a conference, and after a long day of speeches and seminars, you get on the elevator to ride back up to your room.
<---This guy, and no one else, is on the elevator with you, which understandably, makes you a bit uncomfortable. Unfamiliar town, late at night in a hotel, now trapped alone in a confined space with an older male. This is one of those situations that girls are taught from puberty to avoid for their own safety.