Amazing piece on Slate , titled, "If you send your child to private school, you're a bad person"
Here's the thesis:
it seems to me that if every single parent sent every single child to public school, public schools would improve. This would not happen immediately. It could take generations. Your children and grandchildren might get mediocre educations in the meantime, but it will be worth it, for the eventual common good.
According to the article, this happens because it's the activist parents who take their kids out, so if they were in, their activism would be channeled into improving the public school.
As of 2007 (latest data I saw, thanks to Andrew Young), 88% of kids go to public schools. So if they stink at this level of participation, somehow getting the last 12% in would make a long-run difference? This I doubt.
I also think, as Alex T. pointed out many years ago, that exit makes voice effective. Or put another way, voice without exit is of limited use (think about complaining at the DMV).
People, you do not owe the government blind support and cooperation. You absolutely do not.