Being a father here are some of my thoughts. Overall a parent wants a safe and secure environment for their child and their gear.
If families, parents or guardians are going to hang there a place to sit and spectate would be a start. Maybe a picnic area to have lunch or snacks.
If parents wish to drop off their child, adequate adult supervision would be needed. In addition, some sort of system to prevent the kids from leaving without their parent or guardian.