Last May I was behind a girl who hit a car, went into a gully and almost rolled her car. She was texting. My daughter will be 16 in 2 1/2 way too short years, and I've told her numerous times her driving will be the thing I'm most strict about. Texting, talking on the phone, she's walking. And God help her if she drinks and drives.
And I don't think scaring them is a bad thing. I still remember the drug counselor who came to our high school and talked about how his brother died from drugs, after he brutally killed their Mother, and the girl he counseled who while on drugs popped ( on purpose ) one of her eyeballs out because they didn't belong in her head. He was graphic as heck.