Today's youth sp orts trends: According to a national study of U.S. children and adolescents, roughly 8% of 3rd - 5th grade students dropped out of sports. This dropout rate nearly doubled to 16% among 9th - 12th grade students and is even higher in urban communities. - Women's Sports Foundation: Why Participation Matters. Click here to see the reasons why kids drop out, including because "sports are not fun anymore!"