People have now clung on to doorman's fallacy as a way to justify keeping outdated jobs around.
There should be a new fallacy named for this phenomenon otherwise we would have people justifying having travel agents jobs and translator jobs being protected.
I absolutely love waiters in any decent restaurant.
You can ask they waiter what's good on the menu, or what's the restaurant specialty or just what was delivered in the day and thus fresh, and it's a completely different experience.
I am curious to hear why you believe those roles don't provide any value.