It's pushed the limit out 3 years, but I wonder if it's really changed anything? They're 3 years older, but are they 3 years wiser? Wisdom tends to come from experience, and since they don't have any experience with credit cards... Well, I doubt they're wiser about them.
At least they're closer to having the means to pay it off. At 21 (as a college senior) you might have a part-time job, you might have an internship, or you might be full-time somewhere. As a college freshman or incoming freshman, chances are you won't have that income. As a senior, theoretically you should be done burying yourself in debt, and beginning to have the means to pay it off.
