People keep telling me that the family court workers are well-meaning professionals, and are not evil. They are just trying to deal with difficult situations as simply and as best as they can.
I think that most of them are well-meaning. The same is true of cops and prosecutors. But accused criminals still have rights to due process, confrontation of witnesses against them, and a jury of peers. Parents routinely lose their kids without any of those rights.
I don't even think that the system's errors are just those of short-circuiting justice for simplicity. The simple approach would be to just ignore domestic violence claims, or to refer them to the criminal justice system. The simple approach would be to just ignore petty marital disputes since we have no-fault divorce. The simple approach to contested custody would be to say that parents automatically get 50-50 custody, unless there is the sort of contrary evidence that would stand up in criminal court. The simple approach would be to ignore hearsay, rather than try to assess its reliability. The simple approach would be to record interviews, so that there would be no dispute about what was said.