The world has had millennia of not regulating very much
The one exception is weights and measures. There is a long tradition of regulating these strictly, because experience has shown that the market is incapable of driving the cheats out of business and that there must be trust in the markets because else trade will slow down.
Most economists and left-leaning research institutes disagree with this. Transaction costs, both monetary and temporal, are always higher with more regulation and governmental institutional involvement.
The one exception is weights and measures. There is a long tradition of regulating these strictly, because experience has shown that the market is incapable of driving the cheats out of business and that there must be trust in the markets because else trade will slow down.