It's not like you need to believe in anything though. Why do people feel this need to make a choice at all? (I'd say it's peer pressure.)

In my opinion you're better off understanding the concept of religion and the psychology involved instead and how as a consequence a lot of religions are extremely similar to eachother.

Also.. people tend to believe in religions because they have certain needs, usually they do not really make a choice between religion A or religion B, but go with the most common religion within their social environment. Whenever people start about making choices, I always wonder if they actually want to make a rational choice to begin with, after all if they go with their gut feelings, what difference does it make to know or not know of other religions?

Cheers