My issue with "parents know best" is that what we really know best is what works/does not work for ourselves, based on our individual strengths, weaknesses, and personalities. Our kids are different. Some of those factors will be similar to our own, so we can recognize those, and use our unique insights to benefit the child. And some will not. The tiger mom version of "parent knows best" as an overriding parental strategy basically ignores the unique nature of the child, and tramples all over their individuality.

A better strategy is to be responsive to the unique nature of your child. And the problem with that is that the parent-child relationship is so dynamic... the parent responds to the child, the child responds to the parent, and signals get mixed.

It's very difficult to fully understand a human being who is hard-wired with a desire to please you.