There are some differences between the role of the market in the game and the reality, such as door-to-door delivery. Until today, it seems that this is not the mainstream, and people prefer to go shopping. In addition, there is another problem. The workers in the grocery store are often idle, because other villagers can stock up goods for their homes or workplaces, which seems redundant.
I have some ideas：
1.Without changing the existing design, only villagers are allowed to prepare food and water for their houses. Other goods shall be delivered by the market grocers, and the number of grocers shall be appropriately increased. Or redesign: grocers can only collect goods from warehouses and store them on the market. Other villagers should go to the market to buy the goods they need. And cancel the existing setting of market generated tax. The money spent by villagers to buy goods is regarded as market income, which is then converted into tax and included in the warehouse.
2.The town center should have the tax function, not the market. In the current version, the town center is just a large archery tower, lacking other functions.