Eh, the problem is that the people who grow up and end up changing from what they were raised with usually do so because of environmental factors that again loop back to how they were raised. It generally requires an open atmosphere that is socially welcoming to change, where a person can change without massive costs such as loss of family, friends, community, career, domicile, position in society, etc. or the sinking of massive life costs.
For instance, people who were raised in religiously liberal households are more likely to convert to a new religion, whereas those raised religiously strict are more likely to convert to a different version of their previous religion which still allows them to keep their background relevant. So, for instance, Rodney Stark finds evidence that the highest rates of early adoption of Christianity in the 1st century CE was from Hellenized Jews. Christianity was perfect for them because it allowed them to still retain their Jewish identity while at the same time integrating into the Hellenic world. Similarly, when there is inter-faith marriage, the person with the lesser attachment to faith tends to convert to the religion of the more devout partner. The costs for that person from conversion are lower than vice versa.
So bottom line, it is not just a matter of who can escape their upbringing but the extent to which they do, and the costs of doing so.
Could you please provide a link? I'd like to check that out.
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