Those that work for their money, generally outside of the secluded 'not real' educational environment provided by the university. They pay taxes to keep students in the lifestyle of which they are accustomed.
When I was a student, I wanted to point out that I paid exactly as much tax on my income as everyone else; that I didn't get my education provided by anyone but myself, but if my parents had paid, it would have be with income that they had paid tax on as well. And that gave me the right to sleep in till 12pm if I wanted. Which begs the question, now I have a degree and a job, has my opinion changed? -- CraigBox