Atheists who came from a religious family, what religion does your family believe in? What made you stop believing in this particular religion?

Im curious. Im a theist from a religious background ( Christianity). Im curious about the theist who used to believe ans who were born into a particular religion. Why did u stop believing in it? Is it because there were too much contradiction? It didnt make sense? Science was way more probable? Feud with your family? Etc.