Proximity chat makes the open world more immersive. It can have option to toggle off for those that don't prefer. For those that don't mind, it can be a helpful tool for new players to walk up to someone on patrol and ask for help or complime t their character, etc. It would also break up the monotony for those that play often. It is much easier than putting down controller and texting someone and also more realistic. Again, for those that don't want it, they can turn it off and move on.