[MFLoon]

> I've never heard a non-parent make a remotely sensible criticism about parenting

Really? What about children of truly abusive parents (who are not themselves parents)? Are their critiques of their parents as parents not remotely sensible?

I'm not at all in favor of people aggressively policing the parenting practices of others. I just don't think Dunning-Kruger applies at all here, because everyone (except orphans) has some significant experience with the practice of parenting - even if it is only as the parented, you can still form cogent opinions about the practice. It's not some high expertise domain like programming, it's literally human nature.

[randlet]

It doesn't even have to be as extreme as abuse. For example, non-parents and parents alike should feel free to be critical of parents who allow their kids to misbehave in a restaurant.