I'll bite. I have several children. They all attended the same public school system in the same town for their entire K-12 education. Of those, three chose to apply themselves and graduated with an IB diploma.Two chose to not work as hard. One was just more of a people person, and still is. Another did great on tests, and could discuss any topic the teacher asked about related to the reading, but didn't feel homework was worth it. He'll give you a rational and fact based opinion on most any current subject you want to talk about.
I realize that we have good schools where I live. It's one of the reasons that I chose to live here, although the economic opportunities aren't grand. I'm quite sure that there are places where the public school is indeed failing. My college roommate had gone to Loyola in Chicago because of its problematic public schools.
I don't think that the system should be left alone, but I don't particularly fault the school system or the Department of Education for the results we have. We do need a federal level body to set up standards of what must be learned in each grade level. Our mobile population requires this. It is no benefit to our students when California teaches Geometry in 7th grade and North Carolina teaches it in 9th grade - just to give a completely random example with made up subject to grade matching to make my point. When families move, their kids shouldn't have missed out on subject X or a portion of subject X, nor should they have to take it twice. Federal standards aren't a bad thing. It's also a problem when students on advanced study tracks take math at an accelerated rate, but the standardized tests are oriented towards the normal track, so they are answering questions about something they may have learned two or three years ago rather than the last year. The concepts they are recently familiar with aren't touched because most students haven't learned them or perhaps won't even touch them in their entire K-12 education.
At the same time, I think the standards need to be raised higher. I really don't care if you are planning to end up in a vocational job - you need to be well educated. Pushing everyone higher needs to be emphasized. The expectations of everyone have dropped over the couple of centuries of our countries existence. And if you doubt that, I challenge you to take a college entrance exam from 150 years ago. Yes, knowledge has changed. But if you look at what was considered college level work 150 years ago and compare it to the general population then, our college entrance standards are pretty low today.
Teach your kids to read and to do basic math before they hit kindergarten. We did. Show them the value of reading and learning by doing it yourself. Don't just let your mind rot watching Fox or CNN or what passes for television these days. Pick up a book and read. My son that didn't feel homework was worth it just finished the first volume of The Gulag Archipelago. He decided to read some Dostoevsky and also has my copy of War and Peace that is on his reading list. Those books weren't ones I was assigned in school. They were just ones I chose to read (although GA 1 was so bleak I never made it to GA 2 or 3). Get your kid's heads out of the tablets that they seem so attached to from the time they can physically hold them up. Put down the cell phones. Turn off the gaming consoles. Convince them that they don't need to let their minds rot on Facebook, Instagram, TikTok or whatever the latest fad is. And if you don't think any of that is important, then don't make the Department of Education your scapegoat when nothing seems to be going well.