Think about who all would be wearing their hat sideways. I'm guessing the backpack is to limit drugs and weapons ( and outside alcohol too ). Not sure if it's widely known, but Vegas does have a pretty bad gang problem. Same as all the other big tourist destinations; they focus their efforts at keeping the strip safe for tourists but stray a few blocks off.... well then good luck. It's exactly the same here in Bmore, The Inner Harbor specifically. Show up as a tourist and walk around the waterfront with your family thinking " oh my, all of this is so beautiful. If they even knew lol