There are advantages to "government by evolution", as opposed to "government by monoculture"

With the former approach, every country is allowed to try different things, some amazing, some dumb, and learn from the amazing and dumb things that others have done.

In the latter, there's only one governing body, and whatever that body said, goes. There's no science or statistics, just sides shouting their arguments at each other, calling people names.

Both the EU and the US used to heavily lean towards the former approach, but they're slowly but inexorably moving towards the latter.