The Doorman's Fallacy: When QR Codes Replace Service and Quietly Wreck the Experience

The author uses a frustrating brunch to illustrate the Doorman’s Fallacy — the assumption that technology can swap out a human role without hidden costs. The restaurant had replaced paper menus with a single QR code, which forced six diners to scan one by one (even modern iPhones fumbled it), broke the natural parallelism of physical menus, and pulled everyone’s attention onto their phones. A mid-meal parking-expiry alert then derailed the table entirely, a side effect of the same always-on device dependency.

The automated bill-splitting was the worst offender. When six people tried to pay their shares simultaneously through the app, the human staff stood by uselessly and the interface made things harder: it showed only the remaining unpaid total, never which items had been settled, so no one could tell whether a payment had registered or a shared dish would be double-charged. The author was even forced to expose a quiet gesture — paying for a shared dessert — because the app gave no other way to track it. The group eventually left with 24 dirhams still owed.

The broader point is that swapping staff and paper for QR codes looks like a clean win on a spreadsheet — less printing, fewer employees, lower costs — but the savings come straight out of customer experience. The damage isn’t dramatic enough to provoke complaints, yet it lingers as a subconscious reluctance to return, which is exactly the kind of cost that automation-by-default tends to ignore.