Is it any wonder school officials view themselves as the leading authorities on children?Glenn Youngkin’s gubernatorial win in Virginia sent a clear message to government bureaucrats: treat parents with more respect. Parents are paramount to their kids’ welfare and education, and they have a right to be angry when treated otherwise. Yet parents should also reflect on how we got here and consider how they share at least some of the blame. For decades, public schools have encroached on some basic parental responsibilities — from feeding kids to health care to helping with homework. Is it any wonder school officials...