You've touched on a lot of things that have been running around my own head of late. I believe you are quite right that localised community is key here and it's something we've come a long way from. When we lived as communities or in villages, problems would have been addressed by the community (mostly, there is no perfect system). If a child were being abused, the likelihood is that other families would have offered support and a safe haven to escape to occasionally at the very least. Some may have adopted the abused child if that were able. When someone was struggling family and neighbours would have rallied round and helped out.

When this community was lost and things were changed to being policed on a large scale it became pretty much automated and there is no room in automation for taking in individual circumstances. We need to recreate these community groups again and it won't be easy.