Most likely, if he really is in debt, it's student loan debt. In terms of age - a substantial majority of the "individuals" there appear to be middle-class, college-educated, and mostly white. To me, the most telling contrast is illustrated by images like this one:
While these lazy, spoiled, coddled middle to upper middle class, college educated cry babies whinge on and on incoherently about how bad they have it - while surfing the 'net on $2k, plus Apple notebooks - this guy, an immigrant with a very heavy accent is out there working hard at the only job he could find trying to make a better life for himself (when I took the pic, I noticed that he held himself with a degree of self-respect and dignity you don't see from the pampered crybabies right next to him).
This guy came here from someplace else in the world to do better for himself, and even this lowly job is probably better than what he had where he came from; strong evidence that the OccupyWallStreet crybabies are simply wrong about the United States, its values, and its relationship to the rest of the world.
Speaking of the anti-capitalist "protestors" claiming poverty and spouting anti-corporate nonsense, here's a cute pic of two of them sitting inside McDonalds - that evil multinational corporation - enjoying the goods sold therein, and surfing the net on a $2k plus Apple notebook using the wi-fi service this McDonalds provides to its customers for no additional charge:
