Is there a way to make it so that my kids cannot charge on their magic bands? I mean they are 8, 6 and 4, so it is unlikely they would, I am more worried about them losing them and someone else picking it up and going to charge on them??? Can I fix it so that charges can only be made on my husbands band and mine, and then the kids bands can only be used for opening doors, and getting into the parks, fast passes etc.