I think its all a bit recent since 911 to expect this sort of thing. Maybe a few years down the line, but at the end of the day the terrorist threat is real, and the vast majority of flight crew will not take the risk. Plus its more than your jobs worth to break the company rules at the moment.
Its a real shame for wannabes and people with a genuine enthusiasm for aviation. I always enjoyed explaining to people what was happening at various stages of the flight. Its also funny to see the expressions of fear after a landing in bad wx.!