You've finally made it to your window seat, shade down, ready to nap through boarding. Then a flight attendant asks you to open it back up until you're safely in the air. It can feel like a small, slightly annoying ritual, but there's a real reason behind it, and it has nothing to do with the view.
Why the rule exists
When the plane is close to the ground, pilots have less time to react if something goes wrong, and there's just more going on around the aircraft: other planes, ground vehicles, even the occasional animal on the runway. So airlines want everyone, crew and passengers alike, to actually be able to see what's happening outside during those first and last few minutes in the air.
If something unusual does happen (think smoke, a stray spark near the engine, ice on the wing, or a problem with a tire), an open shade means someone might spot it in time to act. A closed one means that same problem could go unnoticed until it's too late to do much about it.
It's also about your eyes
There's a second reason you probably haven’t thought about: your eyes need time to adjust. In an emergency, every second counts, and it actually takes your eyes a few seconds to adapt from a dim cabin to bright daylight (or the reverse, if it's dark out). Airlines would much rather you make that adjustment ahead of time, not in the middle of an evacuation. Open shades also let crew and first responders get eyes on what's happening outside, like fire, debris, or water, before anyone even opens a door.
Is it a real rule?
Sort of. The International Air Transport Association recommends open shades for takeoff and landing as a safety best practice, and international carriers tend to enforce it strictly. In the U.S., though, the FAA doesn't actually require it. It's up to individual airlines, and most don't push the issue, though a few, like United, have made it official policy in recent years.
So the next time a flight attendant taps your shoulder and points to your window, it's not about the view. It's about giving everyone on board, crew included, the best possible shot at reacting quickly if something goes wrong.
