The community college demographic varies widely.
Its an inaccurate generalization to assume that community colleges are populated by much odler students.
Here are statistics from one in NJ:
You can see that out of 8,500 students the average age of 4250 of them is 20 years old. That 43% are under 20 and that 71% are under 34.
Fast Facts (as of Fall 2004)
CCM offers 76 different degree and certificate programs.
Number of students: 8,500
Full-time students: 50 %
Part-time students: 50 %
Average age of full-time students: 20
Average age of part-time students: 31
Students age 20 & younger: 43%
Students from ages 21-34: 38%
Students ages 35 and older: 19%
Minority enrollment: 25 %
Students from out-of-county: 24 %
Average class size: 22
http://www.ccm.edu/collabout.shtml