Passengers are very curious and often look outside through the airplane window. So if you pull the window blinds up, they can help the crew detect unusual incidents outside the plane such as signs of damage on wings, strange objects, .
For daytime flights, window blinds and lights are maximized to help passengers get used to the light. In the event of an emergency, their eyes will not be affected by sudden light changes.
With night flights, the window screen pulls up to help ground rescue workers observe what happens inside the plane.
When the plane took off and landed, in addition to pulling up the window curtain, passengers were also asked to fold the table and erect the seat so that if something went wrong, the evacuation was done quickly. When you are passengers sitting on the plane, please follow the requirements of the crew to ensure the safety of the goods.