I met a few different types of students at the CCs. I did my lower division work there before transferring to a "public ivy".
1) The "1810 Rule "Crowd. Their parents basically told them "unless you are working or enrolled in school by the time you are 18, you have 10 minutes to get out the door." These are generally disruptive and immature students whom I love dearly for consistently popping me up to the top of the curve whether I needed it or not.

I don't want to peg all of these folks as bad students, as many were just trying to find themselves. A good hunk of them will be back in group 4. A sliver of them will probably drop out and start companies we'd like to work for.
2) The "close but no banana" crowd. They almost made it into their school of choice, but not quite. Sometimes they can go through a CC program and get in later through a guaranteed admissions program, if they have good transcripts to show.
3) The "martys/sacrificers". These people could have gone straight into a 4 year, but decided to save their parents/themselves some money.
4) The "fogies/water-testers". That's me. These are people with years of work experience who decided to finally go back and get a degree or at least try it out. Not speaking for myself, but sometimes these people have more wisdom/field experience than the instructor, and one can learn a lot from them.
I respect group 3 the most because that takes real perspicacity to save money and delay the fun, social aspects of the freshman and sophomore year and transfer later. There may be other groups than the ones I categorized, but these are just the ones that stood out to me.