Participation jumped 31 percent; for children who attend high-poverty schools, it shot up almost 80 percent.

 ‘An incredible impact’: Poor kids are being priced out of youth sports. Here’s one solution.

...“Just doing this one small thing had an incredible impact for a lot of families,” said Berk, who published his findings this summer in the Journal of Park and Recreation Administration.

The fee — $50 today, but $40 during the study period in 2009 — was covered by a Robert Wood Johnson Foundation grant, so the change cost the city nothing. Now, having read the results of the study, Gaithersburg officials are considering making the waiver process permanent, which could increase costs for providing youth sports by at least several thousand dollars. There is also a risk of waiver fraud...

https://www.washingtonpost.com/local/an-incredible-impact-poor-kids-are-being-priced-out-of-youth-sports-heres-one-solution/2016/10/27/027fb7a0-97ce-11e6-bb29-bf2701dbe0a3_story.html