What is to say you can't have both? Cameras and overlaying the display with the real world is already being done. Simply throwing up a work env as a HUD around

What is to say you can't have both? Cameras and overlaying the display with the real world is already being done. Simply throwing up a work env as a HUD around the real world isn't at all beyond the reach of cures t tech. So you can see your dog and natural light, and have everything overplayed by an HMD as AR around you.