I just don't see this head start preventing a single person from doing same mistakes. This belief system seems like brain busy work: it makes you occupied for some time but does not make you a better person any more that any reflection will do when you are ready.

Add mythology to the mix and the system becomes net harmful.

Regarding Jesus: I just don't see "common christian" variety sort of people care about Jesus. Yes they claim they "love" him, but they just aren't trying to understand who he was as a person and therefore gravitate to beliefs that would make him facepalm.