Believe in a sort of 'god' if you want to ... if it helps you in some way. Like an imaginary friend who is always with you and always on your side, who always will love you and who can help you through tricky times, as you can talk to him/her anytime. (A sort of self-help tool?) Or to explain things which perplex you, and/or for which there is no current scientific explanation.
And I think most people who believe in 'god' do so as it serves some sort of a 'purpose' in their life, whether it was their choice to believe or whether it was 'forced' upon them in childhood. Cos either it really helps them through hard times or else it is easier to keep believing than to face the fact that there is no god ... like suspension of disbelief/pretending to still believe in Father Christmas to keep getting presents etc. (Or maybe in their family/community, being a non-believer would have some very unpleasant consequences for them, so they dodge any inconvenient doubts?)
Therefore, believing in 'god' is fine with me... in a private/non-intrusive way .... right up to the point where people start to 'explain' things to others as "god did it", (rather than looking for a rational/scientific answer), or "god exists" (without any testable proof), and/or they start to make up arbitary rules like "god wants me, (and you), to do this/that and god doesn't allow us to do this/that", and/or "everyone must respect my belief and practices as this is my religion". Because this it the point where is starts to be annoying/illogical.
Morality is fine. And pragmatism is normal. So please explain any points of view/suggested society rules from a moral/practical point of view. But please do not bring your god into it! Cos it's the way people 'worship' and the random man-made (made-up) rules/law in the name of religion, (and associated traditions), which can be most disturbing to anyone, (more rational), who does not share the same views/ideas.
If I say I like instant coffee and you say you hate instant coffee, no problem. No-one is correct. We just each have different taste buds/needs.
But if a believer says to me "I know that there is a (loving/judging) god", and I say "no your are wrong", I can legitimately ask for proof that your god exists. (Of which there is none.)
Whereas I do not have to prove the non-existence of god to you. (Can you prove a negative, such as "there are no faires living at the bottom of my garden"?)
There is no actual evidence for god whatever any believer says. (It's just their personal hunch/feelings which count for them.) Apart from various accounts, (written or in passed down orally, sometime thousands of yrs old), and more recent personal accounts of things which 'happened' to someone.
So the best we can say is ... no-one knows if there is a god or not, but there probably isn't. (Apart from the imaginary one in your head). And if there really was one, what sort of a god is he to play with us the way he does?" (Not a nice one!)
The humans of the world who wish to believe in a higher being, obviously cannot even unite/agree on which 'god' to believe in, and even those who believe in the same god, cannot agree on what he wants from us and how to make him happy. So there will always be multi-opinions/arguments. (And a LOT of room for doubt?!)
For a rational person, does this not tend to point to the conclusion that it is all imagined/made up/invented by man as a 'crutch'? (As no-one can prove anything?) And that 'god' only exists in each person's imagination? (Like the feeling of love for someone we might have? Just a sort of chemical thing going on and not a universal truth?)
Even if there was a 'god', why or why would we need to 'worship' him/her or have certain customs which can change dramatically over time as we learn things and see the error of our previous ways? (That's the bit I really fail to understand.)
So, for me, thinking about religion in detail, (ie why people need it and how religions come and go/change over the centuries), it seems obvious that god it is a figment of our imaginations and that religion just a way to control what people think/do and give them something to believe in.
And this is why I agree with the OP that professing a religious belief is always much more surprising in a person who has experienced a higher education, who lives in a free society and who is obviously more than capable of thinking about things in a very rational way.