Anytime you swipe a credit card, give a tip, or write a check. You could be interacting with AR software on your own device.
This lets people provide any experience. Not buy expensive point of sales systems, App Store memberships, a square reader...
But I can’t stress enough that our project is limitless. Literally anything you can imagine can be put into a virtual world. Concerts, video games, art shows... who knows. Augmented reality is probably more powerful. All available to anybody with a smart device/computer/VR HMD