The only thing we are all "guilty" of is being human, and since that's not a crime, guilt is an inappropriate term.
While I say that
perfection is poorly defined and unrealistic, we humans do have ideals. Being human, we fail to live up to our ideals frequently.
Children do not yet have ideals. There is no failure, no shortcomings in children. After a few years, after their parents have instilled their ideals in their kids and the kids start to develop their own, then they first taste the feeling of failing to live up to our own ideals.
Religious guilt over displeasing some god only adds to human suffering. It achieves no healthy objective.