This job is not unique in that it's a long shot to get the brass ring. Perhaps most get that. However, many chasing the dream are in denial they will end up broke, divorced, kids messed up, living a life far short of what they set their sights on when they started out. It has happened many times. It's happening right now. It will continue to happen because there will always be a steady stream of fresh meat thinking: "It won't happen to me; I will beat the odds and win".
There is a natural progression of attitudes that generally goes like this,
(1) I will do anything to fly, I will pay to fly...
(2) Flying is the only thing I can see myself doing, I will fly for free...
(3) I don't care how little I get paid, I'm getting paid to fly not sit in a cube...
(4) I like to fly but I resent not getting paid what I'm worth...
(5) I would prefer to not to fly, the sacrifices are greater that the rewards...
(6) I quit; I have given my money, time, life and soul to the career; It has given so little in return I withdraw my training, skills, and experience. Good riddance...
As you can see from the responses on this thread, there are pilots responding from every level. It's all a matter of time and expectations.
http://forums.jetcareers.com/general-topics/53768-expectations-how-save-5-airline-ticket.html