Half the states have stopped making civics and government a requirement for high school. Half.
The No Child Left Behind Program was an incentive to the schools to get their kids up to snuff on math and science and reading.
When I went to law school, which after all was back in the dark ages, we never looked beyond our borders for precedents. As a state court judge, it never would have occurred to me to do so, and when I got to the Supreme Court, it was very much the same. We just didn't do it.
I had become increasingly concerned in recent years about the lack of civics education in our nation's schools. In recent years, the schools have stopped teaching it. And it's unfortunate.