Originally Posted by
Transpacificflyer
It is not an unreasonable expectation to be able to fly in relative peace and quiet. Yes, I understand that a child can cry. However, there is a difference between short episodes and a prolonged state of noise. At all times, it is the moral obligation of the guardian to try and stop the noise that goes on for an extended period of time.
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OP stated the parents didn't do anything. However, I suspect they did try, because I am quite sure they were the closet to the noise.