After I suffered a labral tear in my hip while playing soccer, I realized that many sports-related injuries can be prevented and I dedicated myself to helping young athletes learn more about injury prevention. ↗
I only know from my own personal experience, and I personally feel that there's a cyclical nature to things, so you don't want to start making generalizations about how bad things have become in comparison to the old days. ↗
It's easy to get next to music theory, especially between your peers and music classes and so forth. You just pay attention. I had a good ear, so I realized that printed music was just about reminding you what to play. ↗