Why do US carriers leave the pax signs on?
I've noticed on several occasions that American Airlines tend to leave the seat belts signs on for the duration of the flight. A tad annoying on a LHR-DFW, lets say. Of course, most pax ignore the signs, even when obviously below 10000'.
What are the reasons for this "house arrest"? Security, liability?
The flights, coincidentally, were smooth. Not even light chop.