
Seriously report it to the day care, that's not okay and the place could get in legal trouble if any parents find out. Not only do they not know if she's a safe person, but once she shares those photos to others they could be going anywhere and that's not okay for the child's privacy or safety
I don't want to get her in trouble and work but I really don't think she should be taking pics of them and she knows that too. If I was a parent I wouldn't want my kids preschool teacher to be showing pictures of my child to random strangers or posting them on her personal social media
Also like yes my friend is a good person and just thinks they're cute but 1. You should be focused on the kids not on your phone 24/7 and 2. The parents don't know that she's a safe person and the people she shares the photos with are safe people you never know some people are creeps