The concept of retirement age being 62, 65, or 67 is obsolete. The only place where it is justified is for people who have worked back-breaking jobs for most of their lives or for people who are becoming mentally disabled. The generation now in college will be the first American generation to include a substantial number of persons aged 100 and older; this trend is already seen in countries where the fertility rate fell earlier than in the U.S., such as Japan.
Population Pyramid Projected -- Japan, 2055

Most Americans now working will work well past that presumed retirement age, and many of them will do a fine job of it. That is a consequence of our lengthening life span and of advances in geriatric medicine. Retirement is not all that attractive to people who love their jobs. In fact, the risk of death rises in the first year after retirement, perhaps partially because some people hate being retired.
I know that some people have viewed the Social Security "full retirement" age (which is moving upwards) as their inalienable right, bought and paid for in advance. I don't think this is very common among professionals.
Mandatory retirement is now deemed to be illegal age discrimination in the U.S.
EEOC: Mandatory Retirement Policy Violates Age Discrimination ActSome of our finest minds belong to people born 80 or more years ago. Thomas C. Schelling, born in 1921, retired from Harvard in 1990 and then joined the School of Public Policy at the University of Maryland as Distinguished Professor. His contributions to the theory of cooperation and conflict are fundamental to the field, for which he received
the Nobel Prize in 2005. I expect and hope that he will go until he drops.
Stephen Hawking, born in 1942, is no longer the Lucasian Professor of Mathematics at the University of Cambridge; he founded the University's
Centre for Theoretical Cosmology and funds the Centre from the Stephen Hawking Trust Fund, while remaining scientifically active in the Centre. He is a father who is now totally paralyzed from a disease related to amyotrophic lateral sclerosis. I expect and hope that he also goes until he drops. The world would lose a great mind if he retired and were no longer scientifically productive.
There
is a social problem created by this: young people are having trouble moving up in their jobs and, in some cases, even getting jobs. The senior ranks appear to them to be occupied by old farts who will not leave. This is a problem that organizations could resolve; it is not a Federal problem. It would help for American corporations not to be so rigidly hierarchical, but that would require rethinking the corporation as a matrix rather than as a flow chart of authority.