In Rory Sutherland’s 2021 book Alchemy, he describes The Doorman Fallacy:
The ‘doorman fallacy’, as I call it, is what happens when your strategy becomes synonymous with cost-saving and efficiency; first you define a hotel doorman’s role as ‘opening the door’, then you replace his role with an automatic door-opening mechanism.
Rory Sutherland
The problem arises because opening the door is only the notional role of a doorman; his other, less definable sources of value lie in a multiplicity of other functions: taxi-hailing, security, vagrant deterrence, customer recognition, as well as in signalling the status of the hotel.