Let's be realistic. Size does matter as you progress through the age groups. My DD was a 5' 4" 120lb all state catcher in high school. She was told she was too small to be a catcher at her D3 college. Coach never checked out her skills. Look at the girls on Florida, LSU, etc. and tell me size doesn't matter. However, there is a place for smaller girls at the highest levels of softball. It is absolutely critical to match your DD's physical talents to the right positions and hitting styles. If your daughter is small and quick, teach her to play outfield and be a slapper. If she's big and powerful, play corners and develop the "launch" swing.