I didn't know credit scores existed growing up. I didn't even open a credit card until the middle of my college years. When a friend opened her first card sophomore year of high school (at her grandmother's behest), I scoffed and laughed.
There are a lot of ideas and myths about good credit and higher credit scores but they aren't all true or helpful. As a result, many people know the importance of high credit scores but they aren't necessarily achieving that goal.