scratches on tenant's car caused by other tenants

[Pamela Mailly]

Tenants for a 24 unit apartment complex I manage have been complaining about scratches and dents on their cars caused by kids weaving between cars with bicycles, scooters, etc., and caused by doors being opened into their car. I sent a letter to all tenants for this. This morning, I received a text with pictures of a tenant's car that was scratched. She is obviously wanting me to do something about it. Is is my responsibility? Not sure how to respond to her.