Why are the university cops stopping students and questioning them to begin with if they're not tripping over their own feet or endangering themselves or others? Why not simply leave them alone? Where are your probable cause or exigent circumstances to so much as talk to them?
For that matter, what about the inherent absurdity of "minors" being liable for criminal prosecution for an act to which the law considers them too young to consent, anyway? If the law considers them too young to make a competent decision to drink, then why are they old enough to be prosecuted for that decision? Isn't that a bit bizarre in itself?
And what kind of "help" do these kids need, anyway? The only "help" most of them need is a few years' maturity. High school and college kids have been drinking for as long as there have been high schools and colleges. Most survived, believe it or not.
I started college when the drinking age was still 18. We even had a rathskeller on campus (and a damn good one, at that). Although I was older, having already served in the military, most of the students around me were 18 and 19. And yes, they drank themselves stupid drunk from time to time. But amazingly, students weren't dropping down dead around me. They learned their lessons in the form of killer hangovers. And believe it or not, almost all of them somehow survived to graduate.
I've even spent time in countries where the drinking ages were as low as 14 for beer and wine, and 16 for hard liquor. Believe it or not, most of those kids survive, too.
Rich