That’s never going to happen. Even at BYU there are alcohol problems on and near campus. Even at schools with no drugs or alcohol policies for dorms, or even substance free dorms, there are drugs and alcohol in the dorms. There is alcohol at school events (sports, meetings, dinners).
On CC you see parents post all the time that their kids aren’t partiers, want a college with other kids who don’t want to party AT ALL. Sure, their 16 year olds may be straight as an arrow, but when they are 18 and in a different environment, they may try beer or wine and might even like it. Parents, be prepared. College kids do drink.