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Thats a bad analogy.

More apt would be "The main doors are manual, but the electric garage doors will not function" ... which is actually a common case in buildings...

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How are the doors that these passengers used to enter the car not the main doors, but the "garage door" of a building?

The common case in buildings (the ones that aren't prisons) is that anyone, without any knowledge of arcane emergency procedures, and in a power failure, should be able to exit via the door they came in, regardless if that door is latched and locked. :)

Not true with any elevator.

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