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>However, by removing a lot of humans from the shopping interactions, it allows the removed humans to never learn from their mistakes, to stay isolated in their own views.

Relying on shopping interactions to teach these humans places a huge burden on the people they make these mistakes on. Sometimes I'm not looking to be a teachable moment, sometimes I just want to get my shopping done (or get a cab etc).

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Sure, not every moment in life is a teachable or eureka moment. But the more chances people have to interact, the more chances to gain a better understanding of each other.

Without even the opportunity to interact, that divide and chance to learn is zero.

Maybe the 1 out of 100 times, you go to the supermarket, and are feeling good, and feel like just saying hi and do some small talk to the cashier... while it may not change the world instantly, incremental progress is better than lack of it.

I agree with the benefits of what you describe in the last paragraph. But for these opportunities for people to learn by realizing that their unfair profiling of customers based on the color of their skin is wrong... at what point do you consider the cost of the profilee in enduring these teachable moments again and again and again through their life?

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