As for universities varying the grades students need to get on courses dependingon their background - and the use of what is called "contextual data" - some already do that, but the sector will resist any attempt to bring in an across-the-board rule on it.
Dependingon your cultural background, you might want to display it on your teeth for the appearance of prosperity or wear it dangling from your neck, ears or arms.
Persistent tap-to-track also adjusts the camera exposure dependingon any movement, helping avoid under- or over-exposure of the image's subject or background.