The "benefit" of age 65 is the ability to go directly into medicare after retirement- and not be without insurance for 5 years as when the rule was 60. Lots of folks went to the big 142 schools between mandatory retirement at 60 and worked for 5 years as an instructor (good, bad, or ugly) just to have active medical insurance. I don't see a lot hanging out after turning 65 if they up the rule.