Have you ever been in your classroom after an intence game at lunch, waiting for your teacher to turn the AC on? Or, you just came into school with your bike in the morning which was 3 degrees celsius, begging for the AC to go on heater mode. My name is Inesh and I will be explaining why we shouldn't ban AC during winter at school. 
You all have been extremely hot or cold before, and probably asked for the AC to be turned on. Imagine you in winter, and there is no AC. You might be thinking, "AC is even more cold, right?". Just because if you turn on the AC in summer, which makes you cooler, doesn't mean you can't make it warmer or hotter. It can reach scorching hot tempretures to low frosting ones. If you ban AC in winter, you are banning the heater in winter too. I know that nobody would want to become an ice cube. 
People might say that banning AC in winter will help save energy and other enviormental stuff. If you don't ban it AC, there will basicly be no difference. Imagine how much solar farms are there in the world. Also, how much energy do you think that will make! That much energy will be more than enough to let people stay warm. 
Everyone who wants to ban AC during winter will be freezing and regreting the choice that they made. Even though it sounds like a very smart choice, you will realise that you can't survive in winter without AC.