Have any colleges or high schools been able to moderate dangerous levels of alcohol/drug use?

It’s actually worse in England.
[Daily Mail: Britain has the biggest alcohol problem](Britain has the biggest alcohol problem while Australians take the most drugs: Study reveals the world's vices by country for the first time  | Daily Mail Online)

Anecdotally, a lot of people who live in or visit England decry what @donnaleighg says: rampant public drunkenness, much more than is seen here.