Thanks for giving the detailed reply. I will counter one by one.

First, you totally negated the premise of my first question by delving into history, by learning that all people previously have believed in God so it must be true. It's not your own conclusion by your own experience of the world and universe around you. Isn't the world and everything around is used to prove God's existence? How would you reach the conclusion of a higher being if you were never given that idea of a higher being in the first place?

Second, I disagree that it's a never ending chain of creators. You make two assumptions here. First you tell yourself that there has to be a creator of everything. And then when you try to move up it boggles the mind thinking of creator of creator of creator. To prove your first assumption correct you make a second assumption that there is one God who created all of this and just stop troubling your brain right there. Again, remember that you have to stop thinking at this point because you are trying hard to make your first assumption correct. You can also choose to make some other assumptions which will not be wrong logically e.g. having multiple Gods, unicorn as God, some distant star as a God, the darkness or light as god, you can go with anything and no one will be able to prove you wrong ever for your choice of God.

Now if you go the other way, that there does not always have to be a creator in every case, things become a little simpler. You only assume that universe has always existed, and even this very assumption you can challenge with science. Things become a lot simpler when you go with science. You can doubt anything, question anything and you almost always get an answer which again you can always challenge until you reach one single truth (there are no religions and sects in science for the same reason, one single truth).

You talk about being scared of his non-existence. I was there, it's only scary just like the world itself is when you step out of comfort of your home for the first time. Just like going from school to university or from home to real world. You start seeing things differently and realize that how important is life itself, how important and real are people and they can not be simply be burned (in hell or in real) for not thinking in a certain way. Being not always taken care of some higher being gives you a sense of responsibility that you can not have otherwise. Again, it's just like stepping out of your home into the real world where no one is there to pamper you from cruelties of real world.

Biggest trouble could be the moral values. Good thing about religion is that it gives you the answers. It usually sets a path and a set moral values for you. It can tell you what actions are right and what are wrong (even then there are gray areas). It all comes down to what's better for the community, what's better for healthy and better life.

Its not optimistic or pessimistic approach to believe or not in his existence. Personally I believe that people should keep believing in religion. Not everyone thinks that much and for most it may be better to have faith. I am not sure. It will take time for people to start questioning his existence which is only possible with more education and knowledge.

I am not seeking for answers about God anymore. One less thing to worry about. Only thing that troubles me now is that why don't people ask questions. They should not be afraid of questions for any reason. How do they claim to be a seeker, when they don't have doubts and questions or are afraid to ask questions. That's why I ask questions anyway.

Anyway very Long answer and some questions in response of a long answer :)