In some years, I'd have to get a big raise to meet the definition of pro bono. That's a lawyer's question, like those trick questions children get asked on the witness stand. First of all, I never said that. I said that some of them go that route. The straight answer is simplicity.
Child protection is crime prevention.
There is no biogenetic code for rapists, serial killers, etc. We make our own monsters and build our own beasts. But the earlier we intervene, the greater is the possibility we can get rid of deadly nightshade before it reaches full bloom. We are politically correct. We stay with our clients until they are adopted or they grow up.