Ignite talk

My topic is about religion. I know not so many people talk about this can be a sensitive topic because some people do get offended. I say this because when I was a little girl in elementary and my classmates would talk about what they would do in church and sometimes they would ask me what I do. I was raised in church and my parents taught me that there is only one God which is our savior and creator of the earth. I am Christian so yes I do different things than other religion, but when I would explain to my classmates what I do in my church they would start getting mad at me just because I wouldn't do what they do. I have always been really involved in church since I was a little girl, but at first I dint really understand much about God and other things. Once I did understand things I thought everyone believed in God, but that's not true. I would have classmates that are atheist and would tell me that they dont belive in God. I was shocked or surprised when they would tell me that. I didn't really understand why they dont belive in God, but then I was able to google things. My big question is Why do some people think God does not exsist? I typed that exact words in google and o went to an atheist site. They had their own thoughts of why they think God does not exsist. Then just for curiosity I googled Why does God exist and then I went to a christianity site. They gave some ideas of why God exist which was mostly info of the bible. It is really intresting on how many beliefs think different. Now I want to know your opinion or your answers Why do you think God does not exist? Make sure you have good answers when I go up and give my presentation.