I know various homeschool kids who attended MIT, Notre Dame, Duke, Cal Poly, and other top universities.
Even the best public schools are incredible wastes of time. Take out all the nonsense coursework, travel, time wasted by teachers, gym, discipline problems - and real learning time probably amounts to 1 hour of a 7 hour day.
The kids I mentioned above had time to learn calculus and AP Physics in small groups, and also spend their time skiing during the day.
I wish we would have home schooled, but the need for teenage daycare and my ex-wife’s career were more important. The best argument my ex had for stuffing our kids in a public school was: they get socialized better there. Home schooled kids lack the peer interactions and cant function well later in life. LOL
There are many interests at work in US public schools: publishing companies that also pushed for much of the standardised testing, political (no child left behind, gun free zones...), lawyers, unions, the schools that have their agenda, various programs in the schools... Everyone has an agenda, but only a few even have any educational merit. Most parents are oblivious / apathetic to their child’s education. They just want cheap all day child care and get offended occasionally when they see a chance to get attention or stand up for a punk they see as holy. Yes, you can accomplish the same results in 1/3 or even less the time as crazy as that sounds. MOST of public school time is ritualized bullshit.
Here’s a thought: schools pack 30 or as much as 35 kids to one teacher in high school. The schools get ~$7,000 per kid per year. That’s $210,000 per teacher who in Texas may earn $50k. Where does the rest go? Why does one high school have three principals, counselors for college, but also for LGBT matters in some places, deans, department heads, curriculum writers, someone with the sole purpose to make reports...
$70 million dollar football stadiums. That’s what US public schools are known for, not academics.
https://www.google.com/amp/s/www.dallasnews.com/news/2018/08/29/mckinney-isd-s-69-9m-stadium-is-officially-ready-for-some-football-despite-cracks/%3foutputType=amp