Final answer:
No, a majority of workers in the U.S. are not covered by pension plans.
Step-by-step explanation:
No, a majority of workers in the U.S. are not covered by pension plans. According to the information provided, only a minimum number of years of work is required to claim a form of pension through Social Security upon reaching retirement age. However, this retirement benefit is often referred to as an entitlement program and the requirements for enrollment are relatively low. Additionally, pension plans in both the private and public sectors are being eliminated more and more, and employers are instead offering alternative retirement plans.