If cows gave root bear instead of milk. All of the people could drink milk rarely. When they got up in the morning, they would use root beer to mix with flakes instead of milk. That might be a weird taste I would not like to imagine. And there would be some aftertaste of root beer through the entire day. If someone drank soda in the morning, people would hiccough when they are working. Also, if cows didn't produce milk anymore, there will be lesser and lesser diary product such as my favorite, cheese and pudding. These food are essential for the healthy growth of a kid, as they can supply nutritions like calcium and various kinds of vitamins. In case of those vitamins could not be supplied by milk or other milk products, kids might be easily sick. For me, if cows gave root beer instead of milk, I will be crazy, since milk is the most important thing to me in my life. No milk, no happiness. I need to drink at least 4 cups of milk everyday, thus, I can't imagine how will the days without milk be. Milk is the origin of a lot of food and the heart of everybody. People will die if there was only root beer.