I guess I will join in the fray here.

I think 12+ years is too long for any kid to be in school.
I also hate that kids spend more time with strangers than with their own family.
Public education might do a lot to help them learn some things, but there are a heck of a lot of things they shouldn't be exposed to that are mandated there.
Relinquishing kids to public education means you run the risk of them embracing values that may be totally antithetical to your own, depending on the teachers.
I understand some parents just can't homeschool. Sadly my son and his wife are in that category, as they both have to work in order to survive.
I personally only made it to 9th grade and had to quit to find a place to live and work so I could eat, because luckily for me, the foster care system back then wasn't very active and I didn't become a ward of the nanny state. I learned a lot more and a lot faster after leaving school than I ever did attending...in fact, I went at the age of 38 and nailed my GED without even studying, just took the tests, which makes me think, if I could pass tests on high school cirriculum
without having ever been to high school, kids probably aren't learning a lot there that will be useful to them in the future. I had my own business and got my GED so I could say i graduated before my son did.
My boys went to public schools, which I protested, but their father insisted on it. I think it was a mistake on my part. BTW, neither of them can spell. We used to read together all the time, until my oldest was in 2nd grade and an incident with a teacher caused him to sull up and he never did get interested in reading again. Before they started school we were having a great time learning things, and I loved teaching them, but they lost their enthusiasm, as the classroom setting was not at all fun for them. That might be genetic, as it seemed to suck the life out of me too.
I have 2 sisters with Masters degrees. My brother, who barely made it out of HS makes a heck of a lot more money, running his own business, using his good common sense and skills. Of course one of my sisters is a high school teacher. Kids love her.
My grandfather was uneducated by today's standards and did the same. He died a millionaire.
I don't think school is the great answer everyone thinks it is. There is a certain level of learning we all need, but the most important thing we can learn is HOW to learn, and use critical thinking. I don't see those being prioritized, or even welcome, in most of today's public schools. Kids are just supposed to barf back the answers given to them and their minds atrophy.
That's not to say there are not some excellent teachers out there who make a positive impact on their students. I just feel, for the most part, public school is more of a necessary evil than a privilege.
I think there need to be more choices for parents. The same platform doesn't benefit every child. Their needs differ as much as their personalities and learning needs to be tailored to their needs, not the agenda of the gov't.
Here's a nickel, I need 3 cents change.
BTW, I figured that without a calculator.
