Some airlines have not hired in years. In fact, most airlines have reduced schedules to meet the reduced demand of air travel while the country experiences the current recession. Many airlines have parked aircraft. Pensions were terminated and older workers find themselves with not enough income going into retirement, hence, they continue to fly to keep an income and in some cases, medical benefits.
I just flew with someone who was in their late 60's. He gets his pension. He gets social security. He gets Medicare. AND HIS PAYCHECK. I was shocked at what he brings home, money wise.
I think we're missing a generation of "new hires".