Yes, teach print awareness. Let kids see the text you are reading (or writing) and bring their attention to it. Talk about those spaces between words, and don’t hesitate to point to the words that you are reading. But don’t spend a lot of time on fronts and backs of books or how to turn pages or whether numbers and letters are different.
Teaching kids to identify text structure is a really good idea. However, focusing those efforts on how the content is structured will usually be more beneficial than on the common rhetorical structures.