US street signs are standardized so you can see at a glance without reading. I understand the EU does similar but with a different standard.
But street signs are not the only signs. There are place names and ads and directions and telling you where to line up for what and how much the subway costs and how to get from one part of Paris to another and directions for the theater, etc, and most of those are localized
Most countries use street signs that do not require translations, that is more of a US thing.
US street signs are standardized so you can see at a glance without reading. I understand the EU does similar but with a different standard.
But street signs are not the only signs. There are place names and ads and directions and telling you where to line up for what and how much the subway costs and how to get from one part of Paris to another and directions for the theater, etc, and most of those are localized