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.
I think that a ban is not the best way to discourage people from trying gambling. Of course, such establishments should not be located in close proximity to educational institutions. But in reality, students are not the wealthiest clients of casinos, so they are more likely to choose the online version since it is more affordable and convenient. It’s better to actively promote financial literacy teaching people how to properly manage and allocate their money rather than simply prohibiting something.