Students are not the wealthiest clients for casinos. They have bigger spenders than students. Poor people and students are some of the vulnerable clients gambling companies want to keep because they make up parts of their profits.
Students are vulnerable clients? I am not sure that they even gamble that much as people say. Maybe they gamble frequently, but they are not the biggest spenders. How much can they lose? Lunch money? They will quickly run out of them and they will have to stop or pause gambling until tomorrow. And, as they have still too much to explore in this world, I dont think that returning to gambling is their goal for tomorrow.