Visa buxx?

My 13 has 3 camps this summer one being 4 weeks long. (Duke tip). She needs spending money at these but I am afraid to give her that much cash. All the camps are on college campuses so debit cards are easily used. She is pretty good with money for a young teen. She has been through Dave with me. What is anyone’s experience with the teen prepaid cant go overdrawn debit cards?