This is a more 屋台 alike restaurant, or a street food shop. It is more casual and usually don't give you drinking water. But they allows you to bring your own drinks with you, because everyone there buy drinks in the night market, so the shop give you the freedom to bring yours. So when we went to this kind of food shops we usually buy a drink somewhere else before hand. It will take you some time to learn how to figure out which restaurants you can bring your own drinks with you. 🥤🥤