What's the proper term for the group of people over a certain age? "Senior citizens" doesn't get used as much any more. "Elderly"? "Aging Americans"? Columnist Jane Glenn Haas of The Orange County Register shares her thoughts here: http://www.ocregister.com/articles/senior-265904-elderly-old.html
The traditional labels pertaining to "seniors" are changing with cultural and societal shifts. As life expectancies increase, the age when one is defined as "old" has to keep going up. In the 2000 census, the U.S. Census Bureau defined "elderly" as those age 60 or older. With the significant increase in the population joining that group over the past decade, that terminology will no doubt have to be revisited.
Phrases like "older adults" or "mature" have become more commonplace, although many simply refer to "seniors." The classifications will continue to evolve. If you're in this group, what do you prefer to be called?