Quoted from flynnibus:only because that's the way they've implemented registration - it's not the only way to do it. Does your Roku or FireTV have a QR scanner? No, these are all examples of models where the device talks to the cloud and uses a challenge model to associate the device to the user and help authorize the transaction.
Yeah it seemed weird to me to have the scanning hardware in the machine rather than offload it to our phone like every other product seems to do.
With golden tee you can log in with your credit card, your phone number, a game card or a unique ID given to you by the app. The hardware to do that is a lot cheaper than a camera which we all already own in our phone.
The Atgames legends vpin shows a QR code that you scan with your phone and it tells the machine to log you in. Seems like the cheaper route if we all have to use an app anyways.