The ability to respawn changes the perspective on everything, in game each player is effectively a nobody. They have no past, no mother, no family or relatives and you know that when they die, they will come back to life sans their items. You can't recognise them as a person, most people look the same due to the engine and lack of customization, and after all we all consciously know this is just a game. Is it really that hard to get back items? It's just a matter of time, maybe a few hours to get some good items again. Furthermore, when you have accumulated some nice gear what else are you going to do than start picking fights? Wander aimlessly collecting water and beans? That's not much of a game, and eventually the zombie aspect becomes greatly trivialised. And really, due to respawns death really has very little consquence for the dealer or the receiver. In real life people are thinking about the future, how they want to live, how they can be safe and how they can protect what they care about. In this game, the loftiest goal is finding some rare guns or vehicles and keeping them, and knowing that it doesn't matter if you die because you can always find another. Stealing and killing are things that do happen in real life, and when presented the opportunity it's surprising what people will do when they think they can get away with it. However, in general people tend to try to avoid trouble as it often has a funny way of blowing up in your face. What we are seeing is really the result of having an online game, with a primary focus of guns, where there is not much left for players to do in the end game, and the survival aspect of the game is actually rather easy. Of course people start going around looking to PvP, what else is there to do? It doesn't reflect much on what would happen in reality, because it is nothing close to it.