Participation dropping............http://www.highschoolot.com/nc-sees-sharp-drop-in-high-school-sports-participation/14828812/
I know it looks like it to me. My daughter is still at Pisgah and I see all kinds of big and athletic kids that could probably learn a sport but don't do anything at all. Also, where I work we get a lot of kids that have just graduated and such, so when I talk to them I ask what school they went to and if they did any sports or whatever and so many say they never did anything. These days it seems like a select few put forth the effort.
I agree that its hard to directly compare what the Pros go through to what high schoolers experience as far as head injuries. There is a cumulative affect compounded by extra seasons, more games and practice, and much stronger players. I really hope that more people realize this.
As far as participation, I wonder how much of it has to do with school consolidation over the years. If I attended a large 4-A school, there is no way I would have ever seen the field and I may have not even played. However, I was a starter on one side of the ball and saw the field on the other along with special teams playing for what was then a small 3-A. As the average school gets bigger, your average participation numbers will drop because you can only put so many kids on the field in any sport.