<p>Public schools have a large % of students who pay all or most of their way through school with part time to almost full time jobs.</p>
<p>This is very true. State schools often have many students whose parents were unprepared for college costs, therefore the students are taking less classes, so they can work more hours to pay for their schooling.</p>
<p>I don’t know how popular co-ops are in Calif, but in other states, that can also cause a delay in graduation.</p>