Do you see the cobbles on the streets? Everywhere you look, stone & rock. Can you imagine what it feels like to reach down with your bones & feel the living stones? The city is built on itself, all the cities that came before. Can you imagine how it feels to lie down on an ancient flagstone & feel the power of the rock buoying you up against the tug of the world? And that's where witchcraft begins. The stones have life, & I'm part of it. - adapted from Terry Pratchett
You can now get decks which make their lack of people a virtue, but that's not what I mean. Even in a standard RWS deck some of the cards don't show any people at all. It may be significant that they include aces - clearly what is depicted is not manifest on our plane and there are bigger things at stake than mere human experience. This may explain why I've always found the 3 of Swords and 8 of Wands difficult to read and it may help to think of them as relatively impersonal processes. I left the 4 of Swords on its own because while it does not show actual people it shows artwork showing people so it's out on its own a bit. Of course if you read with a non-pictorial deck the proportion of cards showing humans is much different and so is the emphasis of the deck.