Vlad,
Actually, in my own experience and reading former Christians who decided they didn't actually have a faith/ or it was their parents faith or lost their childhood faith one notes
quite a lot of key knowledge that is missing and misunderstood or not experienced. For people who aren't familiar at all with inherited religion thinking that infants can hold, understand,and hold onto doctrine and then this is just picked up with in adulthood, this might be a forgivable ignorance.
You’re still missing the point. Children told that the fundamental tenets of their faith (for Christians, the god of the Bible, a man/god Jesus, miracles, a resurrection that actually happened etc) who lapse and then “convert” will generally convert (ie, return) to the faith that still features the god of the Bible, a man/god Jesus, miracles, a resurrection that actually happened etc. It’s relatively rare for them to convert to a religion featuring, say, a prophet riding a winged horse, and
vice versa.
This should give you pause at least. It doesn’t, but it should.
In terms of christianity repentance and faith/ relational trust can be missed even in aged churchgoers. Other religions have their own encounter and response moments even if that is as basic as seeing that religion in a different light.
Relevance?
Personality I think that lines of argument like yours suffer from problems introduced by Myers and Dawkin's thesis that atheists don't have to know about religion to talk expertly about it ha ha
Personally I think you’ve just tried yet another straw man (it’s often been the case that Dawkins
et al know at least as much about the contents of the religions as the theists they debate) though, that said, you’re also trying the Courtier’s Reply fallacy again here. The claims that religions make are secondary to whether or not the justifying arguments for them are sound. I no more care about claims about the colour of leprechauns’ shoes than I care about the claim that Jesus was alive, then dead for a bit, then alive again when the justifying arguments for both claims are wrong.