Is college worth it?

This proessays study doesn't seem to have balanced for the relative earning potential of the majors available or the types of students who attend.  Of course a pharmacy school will get you a high return outcome--you've got over 95% of students going out to be pharmacists, a highly-paid profession.  No English majors to drag down the average.  And maritime schools are going to draw those students who are already the "buckle down, do what it takes to succeed" hard chargers who would probably work their way up from the assembly line if they didn't get a degree.