Times have changed. At 17 I was driving a semi-truck over the road, just pull over anywhere and lay down in the seat to sleep. ....and yes, even back then Momma's worried.
You know, as a teenager, I went a lot of places all alone with no problems. We had an advantage though. Back then you could sort of tell what was wrong with a car and fix it beside the road or at least get it to go enough to get into a town. Now a days they just quit, like you switched'em off, and there's no way you going to get it going again, damn electronics.