Two months ago I started fostering two sibling. The sister is 14, brother is 10. She pretty much tales care of him and her brother will not let us try to really care for him. He can not be without her for longer than 5 minutes or he will start screaming. They are doing the distance learning and he has to be right beside her at all times. I was told when he was 5 his mom had driven home drunk with him in the car. Luckily he wasn't hurt. And locked him in the car in his booster seat all night in the winter and he got hospitalized. So he's afraid if his sisters leaves him she will not come back. I don't want to cross any boundaries but I can tell she is exhausted. She is only 14. What are baby steps we as a family can take to help with his separation anxiety?