The parade of fees on college campuses never seems to end. There are extra charges to start college, such as orientation fees and freshman fees, and extra charges to finish, such as senior fees and commencement fees. Since 1999, mandatory fees have risen 30 percent more than tuition has, said Robert Kelchen, an assistant professor at Seton Hall University who has studied the issue. The average fee at four-year public colleges was almost $1,700 in 2015-16. That’s nearly 20 percent of the tuition and fee average.