Agree. One of mine spent the night down the road, and was actually at the friend's house. The parents didn't know it, but they managed to sneak out and hitched to a bus stop, and made it to CINCINNATI! At age 14. They were looking to leave this town, and make it big in movies.
I got a call from LE giving me exactly two hours to come get mine or they'd release them. The other parent? Asked if could just grab theirs while I got mine.
Needless to say, we broke speed limits, and sound barriers, getting to Cinci. Also, last overnight at the friend's house.
However, with that said, CR1 and DR, did know, when they gave her permission to go to Fla with them. She was 14, IIRC. Not demeaning their choice, they probably saw it as an adventure, and were friends with the Ws at that point, but, with an 18 y.o. bf, it would have been a NO, for me.