Not all home schooling is bad. It takes a lot of effort, time, and usually money and education to do it. But for every good home schooler, there are a lot of psycho home schoolers who learn Jesus Math and that evolution is false. The problem is that home schooling is often poorly regulated in the United States, depending where you live.
And when you are home schooled, you are not exposed to any of those pesky "contradictory" ideas if your parents don't want you to be. They can successfully bubble up their children in little fantasy worlds where they control the influx of information. While you cannot prevent parents from talking to their kids and teaching them nonsense, you can at least give them access to information that the parents don't want them to see if they go to public schools.
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