I have to agree. Many people lack the coping skills to get them through life comfortably, so do need their faith to serve as a crutch. In this respect, and only in this respect, I think religion is a good thing.
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I think that a religious upbringing creates the need it satisfies. If one grows up basing his thoughts and develops emotionally around the idea of a protector, he ends up needing that idea.
Reality is a little intimidating as we learn to grapple with it, but with perseverance, one can learn to stand upright and face it on its own terms. One can stand up like the bipedal ape he was born to be, and look out into the universe, which may be almost empty, and which may contain no gods at all, and face and accept the very real possibility that we may be all there is for light years.
Accept that we may be vulnerable and not watched over.
Accept the likelihood of our own mortality and finititude.
Accept the reality of our insignificance everywhere but earth, and that you might be unloved except by some of the creatures living on the surface of a small planet.
Because as far as we know, that's how it is.
It isn't hard to do unless you first try to do it late in life, say after age forty or fifty. You can't very well expect people to begin at that point to find meaning and purpose without a god, or to develop the internal moral compass they would have had had they been raised in the tradition of rational ethics rather than trying to conform to biblical commandments.
How many times have you read believers say that life would have no meaning without their god belief? Unbelievers don't think that. They've learned to find meaning and purpose that the believer has never known.
How many times have you read believer ask what stops the unbeliever from berserking as in A Clockwork Orange given that they don't believe that anybody is watching them or will punish them if they aren't caught by the authorities? Once again, we're surprised to see how alien our experience is to them, but it apparently is.
That's what their religious upbringing did. Now, they need it.
And then there are the social considerations. If you've been part of a religious community - friends, family, church - and built your life around it, it can very difficult to face the consequences of restructuring one's life. You can expect severe repudiation and shunning.
"It is no defense of superstition and pseudoscience to say that it brings solace and comfort to people. If solace and comfort are how we judge the worth of something, then consider that tobacco brings solace and comfort to smokers; alcohol brings it to drinkers; drugs of all kinds bring it to addicts; the fall of cards and the run of horses bring it to gamblers; cruelty and violence bring it to sociopaths. Judge by solace and comfort only and there is no behavior we ought to interfere with." - Isaac Asimov