This thread feels like it's going to devolve into yet another roundabout conversation about the purpose of the Covid restrictions

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I have never had a dispute with another passenger about whether the window should be open or not. Usually I prefer to avoid confrontation so if a passenger closes a window that I have opened or vice-versa, I will tend to leave it like that until the passenger in question has alighted.
We have coped fine for decades with passenger operated windows; it's a system which in my opinion simply doesn't need to change.