When I actually was required to talk to “mental health providers” because of my job(s), I was constantly confronted with the 'stigma' argument for not reporting.  Or the 'client trust' argument for not reporting.  

With some of those people, I came to believe it was the 'Don't kill the goose that is providing the Golden Eggs' argument, particularly when Mommy was paying the “mental health providers” and didn't think her little darling could possibly be a danger to anyone.  

Sandy Hook, Thurston, Umpqua.  Those 'little darlings' turned out to be killers, just to pick a few quick examples.