Originally Posted by
mersk862
I believe it has to do with that the door gets secured from outside the aircraft, which requires the GA to finish the closing of the door (at least on the 757). As such, it'd be a problem for the F/A to secure the door shut unless they didn't want to be on the plane.
Well, but on smaller planes like CRJs which can't be reached from the jetbridge once the little ramp is removed, the doors are closed by the FA as well - so a 757 Door is different in a way it can't be securely closed from the inside?