That's all well and good Rachael, but as a parent if I change my mind I would expect you to honor that. You have no idea why I may not want my child's photo out there anymore.. and you don't need to know my personal business.

These are small children. Their parents have every right to revoke their permission and expect it to be honored as much as humanly possible.

Parents, this is one reason why you should never sell your children's photos. Once someone "owns" them, you have no say and not everyone will respect your decisions as the child's parent. Simple solution is to never give the okay to use your kids' photos publicly.