One of the advantages of a centralized grid is economies of scale.
Anything that runs local tends to be more synchronized. All the street lights turn on at the same time. Everyone gets home around the same time. The sun and wind empower generators at the same time.
The reason we were able to utilize any PV/wind at all from a 'chaotic' producer that is also the end-consumer, is because our grid was able to sink a whole lot of extra energy production. We just turn down our centralized producers for the grid to remain in balance. However, nowadays we can have hourly tarrifs at which energy sale price becomes negative. It costs money to produce, we have an excess of energy being dumped in the grid by all PV installations. Sometimes even at fixed fee is added, because electricity companies are starting to see local producers more as a cost that they don't want to spread over all households (at least, that's what happening here in NL)
This could create an incentive to arrange your own grid or rules. But honestly, is that possible without going back to those old days? Back then if you needed more power, you throw a few more coals on the fire to build steam pressure and generate more power. If we don't want to rely on this kind of power, then we can only do it via a few ways: install a ton of batteries, install a ton of overcapacity and still utilize curtailment, or a mix. And where do you install this equipment, who is going to pay, what if it fails? This is exactly why we all benefit from economies of scale, even though transport has a cost and an efficiency loss.