You become aware at Cornell College that school leaders take pride in the Mount Vernon, Iowa, college’s small class sizes and bonds students, professors and staff members make. But the college’s modest enrollment of about 1,000 also means a smaller pool of tuition-paying students supporting facilities that attract people to the school. Tuition increases become a natural part of the college. Parents can help their children prepare for college costs by saving for them, Pamela Perry, the college’s director of financial planning and assistance, said. “I think a lot of families aren’t really thinking that far down the road yet,” she said.