Students should focus on being students they shouldn't think about gambling. If they're thinking about gambling they're going to fail in their studies because gambling's going to take over. Students shouldn't gamble.
It's possible to advice a student not to but very difficult for so many students to take such advice, although not all of them allows themselves to be affected by gambling because they like to keep it cool and still focus more on their education.
Sometimes, the cause for this problem is because the casino open their branch in school areas and it's an intentional business strategy to attract the students.