This is very true in my experience. In my younger years I was pretty open to just about working anywhere and ended up keeping the same crappy job for way too long. Now that I have more stability(married & homeowner) in my life it seems that job offers are easier to come by. I know these things shouldn't play a part in hiring and if they do I'd imagine it would be illegal some how, but I have a feeling Flight department managers like stability in a pilot.