That was a sign for us when I was growing up and became the sign for our children when they were growing up. Apparently it was more universal than we realized. You have caught this one against a gorgeous night sky!
Amazing. I was having a conversation with a friend about the difference between kids today and how it was when we were growing up. He said that school started on Tuesday and he was amazed at the number of school aged children in his development waiting for the bus as he rarely saw any during the summer. I told him that when we were that age we lived outside and he told me his curfew was when the street lights came on.