As others have said, imports from government data do happen. Here's an example from a random village in the Czech Republic: https://www.openstreetmap.org/way/10

As others have said, imports from government data do happen. Here's an example from a random village in the Czech Republic: https://www.openstreetmap.org/way/103631362 https://www.openstreetmap.org/way/103631362 It's tagged as coming from RÚIAN, our basic geodata registry. I'm not sure how these imports are organised, if they are fully automatic or semi-manual, OSM is unfortunately opaque and divided into small subcommunities like that. Many cities here do have more specific data available, but every dataset has a different licence (often none at all) and a different format, so there's not much incentive to do an import, except for large-ish cities, but those are usually mapped pretty well already.