Universal mentoring
One could see universal mentoring as a logical next goal after Universal Primary Education.
The rationale is that parents do not have any common qualification,[parenting driver's license] consequently parents cannot be expected to fill the role of pedagogues with any reliability.
Mentors can form an intentional social network with the goal to provide that reliability by supporting and educating parents where necessary (and where not necessary, because you can't easily convince all parents who may benefit from help that they are different from the parents who probably don't; that could be part of the criteria for being in the first group). One could also speculate that every adolescent may potentially benefit from mentoring, no matter how parents are qualified.
As a further effect mentors who become parents later on have some prior training in pedagogy.