I ask because I've noticed the word gets used in a lot of metric countries. A French hardcore band had a song titled "A Million Miles Away", I know of an Australian hardcore band called "Miles Away" and found this Dutch band called
18 Miles, meaning it's not even speaking figuratively. (Also unless it's a different band [which is entirely possible], the singer appears to be wearing the shirt of an Iowa post-rock band...wow.)
But even for non-scene music there's that infamous Proclaimers song. So what gives?