They're talking about street names specifically, not traffic signs. What's the point in having a street name that none of the locals know because they know it b

They're talking about street names specifically, not traffic signs. What's the point in having a street name that none of the locals know because they know it by a completely different name? Btw, based on Wikipedia, China uses symbols for traffic signs like Russia and Europe. US and Canada are the exceptions who use text and only a small few symbols.