Plus the focus on teaching for the test and the move away from critical thinking in schools. I had to teach critical thinking myself to my kids and also how to research and cross reference. I have two sets of encyclopedias and a pile of other reference books and showed them how to use them. What they teach in schools now is vastly different from when I went to school. Public education has gone from teaching critical thinking and problem solving to group thinking, homogenizing and memorizing the 'correct' answers, no understanding required.