Surveys have found that the vast majority of people who enter, and remain in, their religion, converted as little children. 71% of Christians converted before 14 years of age. Before they were allowed to drive, work, vote, drink, marry, or make any important life decisions.
Barna’s research group also found that children converted before their teen years are more likely to remain “absolutely committed” to their religion. Barna writes “Anyone who wishes to have significant influence on the development of a person’s moral and spiritual foundations had better exert that influence while the person is still open-minded and impressionable – in other words, while the person is still young.”
To this end there are huge global initiatives like the ‘4 To 14 Window’ that specifically target children under the age of 14 because they are “the most open and receptive.” As an extra creepy example, see this:
Why does every religion try to indoctrinate their children when they’re impressionable?
Why not let children grow up and choose their specific beliefs?