Namely, if you are aware of intergroup variability in ID-having rates, is choosing it anyways a conscious discriminatory choice?
What I brought up was, knowing this, is still using ID discriminatory?
Edit: Dang it, the best answers always come after I close my laptop. "It would be discriminatory if the government didn't provide people a way to get ID. As a business owner, that's beyond the scope of my responsibility. Same as if someone showed up without $5 and wanted to buy a sandwich." ...is another way to look at it.
That's really what money is - a transferable token to persuade other people to do stuff on your behalf.
At that point, would scalper's contribution be net positive? Net better than it was? I'm not sure how to answer that.