Earlier quoted context omitted.
Success as a parent is much more than just "my child is alive and getting older" Are they becoming a happy person? good, moral person? Do they contribute to society or are they a drain on society? Do you, the parent, have to bail them out of jail every other weekend? Don't neglect your kids, people. Please.
A child's peer group has more influence over those questions than parents do. It's no excuse to neglect your children, but society places far more blame on parents than is warranted IMO.
The unfortunate reality is that this groundwork is laid from around 0-10. After that it's a lot harder to correct the mistakes and the influence then definitely falls much more under peers than the parents.