I’d say the your initial belief system is based primarily on what is taught to you by your parents (or whoever it is that influences you in your early years). It’s the culture of those who influence you, not your geography that starts you down a path.
Once you reach the age of reason, your beliefs become a function of your diligence in the search for truth, your ability to investigate various alternatives and your ability to overcome your pre-concieved notions.
In some cultures making the investigation itself or professing a change could prove very difficult (perhaps even resulting in your death).
The plurality of resulting beliefs does not make them all true. (Or untrue.)
Perhaps my thinking is too simplistic, but it really comes down to two choices. Either there is ONE truth and we should all be seeking it out, or there is NO truth in which case it pretty much doesn’t mater what we believe.
As a Catholic, I obiously profess to believe the former.
If you believe in the later, then you really don’t have a postion to argue other than disagreeing with “my” assertion that there is truth.
Until we agree on that point it pretty much doesn’t matter which “truth” is “Truth”.
Once you accept that there is a “Truth” then I think we can narrow the field of choices dramatically with the application of some basic observations of reality and the use of human reason.
At least this is the track that I’ve followed.
Turns out I ended up back where my parents started me. (But then I’ve been blessed that way.

)
Chuck
Chuck
Not only Catholics, like yourselves, but every other religion on earth claims that they are right and everyone else is wrong. If you were born in a part of the world that condoned a religion other than Catholicism, than quess what, that’s the religion you would adhere to. How do you assuredly devote yourself to a religion that the majority of the world disagrees with. I believe anyone who believes in god is wrong, but certainly you can’t all be correct when you all contradict eachother. Please entertain to this quandry.