Gray ceiling
The gray ceiling is a business/societal phenomenon where the existing workforce of those born during the baby boom era prevents the younger generations of Generation X and Millennials from advancing or being promoted at their jobs. == General == The gray ceiling phenomenon is named after the better-known glass ceiling and is largely an unintentional consequence of demographics, though another factor is Boomers retiring later, due in part to the Great Recession having depleted their retirement savings.