Why? I kinda dropped my phone in water a year ago and (from what I understand) the camera used for the AR bit of stuff doesn't work. Maybe that's not the case and maybe my phone just can't do the AR this is doing, or maybe it's my settings. I just know my phone boots it up and runs the animations and gives me the option to do the AR but won't let me.
Thank you for the explanation!
What phone are you using?
The support will depend on if your device supports Depth API in ARCore. You can check which devices supports it here:
ARCore supported devices | Google for Developers
In the future, I hope to be able to get some more older devices to test on, as I might be able to circumvent the need for Depth API.