Hey, completely new to the game and played my first match last night with a friend. Playing the game as the Romans, it's around the 1500's when I settle a coastal city. In it's 3 x 3 radius I had Fish, Dyes, 2 Forest Tiles, and a lot of Grassland. The city had reached size 5 and was still only working the Fish. Great tile, but I felt there were other ones that it could have worked as well. Why was it only working that one tile? The way I understand it is that Population relates to the size of your workforce for that city - so shouldn't it have been working 5 tiles?