Haha, I don't man. And I have a reason. It's like this.
Whenever we had a question that we couldn't answer like why is the human body so intricate, we answered it with "God made it like this." We believe that since the body is so complex it had to have a designer. It cannot be coincidence. And we called him God. But now we know exactly how our body achived such a complex structure thorugh evolution. All the questions we couldn't answer, we resorted to supernatural answers. But today we have answers to many such questions, not all, but still, a lot.
The reason I don't believe in God is manily because I haven't seen him, but also because I feel truth and God cannot coexist. You cannot be sceptic to God's word, right? You have to believe it as is. There's no place for truth if you bring in God to the conversation.
And I care about the truth. No matter how uncomfortable, disguting or fucked up the truth is, I care about the truth. Which is why I don't believe in God.
I believe in humility, goodness, hope, optimism, positivity, etc. And I feel that if I a person can truly believe in all these, then the need for God vanishes.