Drugs are inevitable on a college campus. That's no great insight or revelation, but I feel (as most of us probably do) that it needs to be said in order to move forward with the topic. College is traditionally the point in a person's life when he breaks free from the shackles of independent life and immediately begins making bad decisions.
And drugs are out there. And not just marijuana (is that even considered a drug anymore?). Harder drugs (generally defined as the ones that can actually kill you) are accessible on most college campuses if you look hard enough (I would assume Cedarville would probably be an exception, but who knows?).
The problem is not the will to experiment with these drugs. Curiosity is natural, especially for people in their late teens/early -20s. Drug abuse comes down to one problem: self-control. When people don't have any, they tend to develop dependencies. It's true for alcohol, marijuana, cocaine, etc. When students lose focus on their required tasks and replace duties with chemicals, problems arise.
Drugs are reasonable when managed. But the levels of self-control vary from person-to-person, and from drug-to-drug. I feel like I know my personal limits. I feel that there are people who can handle harder drugs than I can. And I know that there are people who can't meet my personal drug plateau. It's all a matter of will. Bottom line: if someone can manage his life while maintaining a steady drug routine, I say more power to him. But I certainly can't.