Yes, according to stats, a large number of kid's aren't participating in tackle/pop-warner football due to fears of developing CTE/other brain-related injuris in the future.
According to statistics provided to the Daily News by the Sports and Fitness Industry Association (SFIA), the number of kids playing tackle football across the country in what is called “core participation,” basically those on teams, has been steady the last five years after a big drop in the older age group six years ago.
Here are the numbers playing tackle football for the last six years:
Ages 6 to 12: 1 million (2011), 1.055 million (2012), 1.007 million (2013), 959,000 (2014), 965,000 (2015), 982,000 (2016)
Ages 13 to 16: 1.891 million (2011), 1.532 million (2012), 1.579 million (2013), 1.631 million (2014), 1.574 million (2015), 1.562 million (2016)
source:https://www.nydailynews.com/sports/football/concerns-cte-grow-future-football-bleak-article-1.3611146
The future of NFL/"American" football is indeed bleak. I never liked that sport much anyways, basketball is the best sport!