The "teachers shouldn't parent; parents stopped parenting" lesson is one I've heard from more than a few. What if teachers ALWAYS "parented", and as societies

The "teachers shouldn't parent; parents stopped parenting" lesson is one I've heard from more than a few. What if teachers ALWAYS "parented", and as societies grow more tolerant and diverse this obviously doesn't scale (parents disagree with teachers on what should be taught). Thus we decide on this image of teachers giving knowledge and means of learning, while parents give morals and social structures. But has this image every existed in practice? How do we know it is even achievable? A child is learning from EVERYTHING. Is it truly reasonable to expect that teachers aren't "parenting"? Even if they expressly attempt to focus on intellectual pursuits only, that is just showing a different set of parenting lessons (potentially about lack of accountability, or the division of social mores from everything else). Likewise, if the teachers have turned to this absent form of parenting, are we correct in assuming that other parents aren't doing their "jobs"? (After all, it's never MY kid that isn't getting parenting, it's everyone else's). I don't have solutions or suggestions, but I want to raise the idea that maybe it's not "who" is or is not parenting, because everyone is, all the time, even if trying NOT to "parent". If so, then simply trying harder to ensuring parenting only happens from parents, and DOES happen from them, is doomed to failure, incompatible with the operating of developing minds?