Big Brothers Big Sisters Kansas City works to clear the path to a child’s biggest possible future by Matching them with a caring, adult mentor in a one-to-one friendship. “Bigs” help “Littles” ignite, empower and defend their potential by standing with them. Last year, 100% of the Senior Littles graduated high school, 84% reported improved self-esteem, and 71% reported improved grades since being Matched.