That has nothing to do with trade workshops AFAIK.
When you disable the bronze and/or iron age in the editor and make the player start in one of these ages, the houses have a stone age look. That can be pretty useful at times.
While sausages are tasty, you might cut your finger with that pencil over there.[This message has been edited by LittleFreak (edited 10-08-2005 @ 08:43 AM).]