up the habit from family or friends, while others might simply be touching the aircraft as they move through the boarding area.
What the gesture doesn’t do is replace an aircraft inspection, serve as a required passenger safety check, or guarantee a safe flight.
And that’s what makes this small, curious behavior so interesting: the same simple movement can mean something deeply personal to one person and nothing special to another.
The next time you see someone briefly touch an airplane before boarding, you might find yourself wondering about the
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