At the college (and even sometimes at the post-college) level, the bulk of the entry-level jobs you are going find are going to be unpaid. If you don’t have a lot of experience/post-secondary schooling, they presume that you will take the job without payment, seeing as you need what to put on your resume. Apart from minimum-wage jobs with little opportunity for advancement and/or no resume value, it’s tough to find good, entry level, paying jobs.
(The most annoying is when they expect applicants for an unpaid internship to have experience in the field–can’t even TELL you how many times I have encountered this. I don’t get it at all. :/)