The last time there was a thread on this subject I got the impression that the people that wanted to leave aviation, young or old, had worked in the industry most of there lives and seemed unaware that the decline in working conditions, pay, and seemingly rights for non-management workers is happening everywhere. That may sound dramatic, but you don't work on the chemical site that i do!!
Now I am by no means an expert on the subject so please don't shoot me down, its only a gut feeling, im sure there's plenty who left knowing full well the situation.