You cannot just copy and paste things from a public domain data source without first checking the copyright terms and making sure that they're compatible with the OSM license (if they are, you can comment on the revert changeset saying so):
In my experience, the satellite imagery available in the OSM editor to trace buildings and paths (which the other commenter was talking about) - and when I want to add shops and other things; a quick survey with some photos - are both more than enough for most things.
> You cannot just copy and paste things from a public domain data source without first checking the copyright terms
There's an oxymoron here. Many public data sources that are free to use, do in fact have copyright considerations to be made, correct.
However, "public domain" does not have copyright terms attached. That is why it is in the public domain. If something is actually public domain, there is no copyright holder, and no terms to be enforced.
- https://www.openstreetmap.org/copyright
- https://wiki.openstreetmap.org/wiki/Potential_Datasources
In my experience, the satellite imagery available in the OSM editor to trace buildings and paths (which the other commenter was talking about) - and when I want to add shops and other things; a quick survey with some photos - are both more than enough for most things.