I'd like to understand more. Are you saying that communities and individuals should also manage communication platforms, public transport, law and order themselves?
For global challenges like climate change, regulation at the global level seems like the right responses.
Communities may provide their own training and personnel, but they're generally subject to the laws of their state/nation/etc.
Law creation is probably the biggest outlier though
Not to mention the scale of rural communities makes the task proportionately less complicated. Scale matters very much. For example, if you are on the subway, how do you know who owns the magazine in your lap? There's a system of justice at work, it's very small in scale and you didn't need a lawyer to figure it out.