If you're really passionate about this issue, you should do brain scans showing the differences between reading a paper book and between reading text on a computer, tablet or smartphones. Even the best-written or best-spoken words are not powerful enough to break through all barriers.
That employee of the month might not be around for long. At the Walmart where I live, they got rid of some of the do-it-yourself checkout terminals to stop people from stealing things. Across the street from that Walmart is an Aldi. That Aldi eliminated all their do-it-yourself checkout terminals for the same reason.
Fine with me. I like it when someone else scans my groceries, especially items that don't have barcodes.