Instead of fighting on the public stage over the distribution of society's resources, people are more likely to end up bickering with each other about noise, or clearing up the rubbish. In straitened circumstances, and without public outlets for personal frustration, individual relations can become more fraught. But the role of third party intervention in personal disputes is far from being a solution. In fact it can only aggravate the problem. Some degree of personal conflict is to be expected in real life.
Most people learn to get around it.
But third party intervention makes that avenue impossible. Far from resolving conflicts, it can only have the effect of formalising them and consolidating them. Couples who had made viable private agreements about maintenance found that rates were changed and fixed. Aggrieved fathers demanded greater access, or tried to abscond from payment. Mothers were strong-armed into naming the fathers of their children against their will by the agency.