I don’t know about you but when I was a teen in the times you mentioned we went out to those places as a group, not alone. If a stranger approached one of us and tried to get us alone it would have been weird.
Social media can certainly make it easier to isolate an individual while also giving them a sense of safety. A teen today can be sitting in the safety of their bedroom all by themself and be groomed by someone through social media.
Like with most things technology has made this easier than before and in this case that’s not a good thing.
Hotels/motels still exist.
I’m not going to get into the discussion about whether renting should or should not exist but I can get behind the idea that renting for profit shouldn’t be a thing.