Why the term "passing the buck" is no longer current in the English language

I've just noticed that one my favorite phrases -- passing the buck -- is no longer current, at all. Young people have never heard it. Even highly educated young people, like young educators and librarians have never heard it, or don't know what it means. It's really a wonderful and highly efficient way of describing government and instituional irresponsility, not doing anything about obvious problems, saying it's not their problem, it's someone else's problem -- "buck passing". So where did it go, and why? I think this might really be rather simple. In the past in Britain, America, Canada and Australia, say 50 or 100 years ago, it was generally assumed that government and institutions in general did their jobs pretty well. They were responsible and effective, most of the time anyway. If they could do something about an obvious problem, they would. So, when they didn't, people got mad about it, and complained that the authorities involved were just "buck passing", a term of contempt and denigration. However, by now, everyone knows, particularly young people, that, as a general rule, institutions and government never take any responsibility for anything, if they can possibly avoid it, and, they usually can avoid it. Unless they are absolutely forced to do something, these bureaucrats really never do anything at all, ever! And, this is quite common knowledge. So, effectively, this very efficient way of describing official irresponsibility has ceased to be useful or necessary, because, effectively these days, it is actually tautological. Officials are always irresponsible!