Completely disagree with that. Parents know their children better than that, even if they don’t want to admit it. Agnes is not dense. She knew what Oscar was like, and that it would affect his business practices too. It was out of character for her to trust him with all her money, especially after what she had to go through to get it, as she keeps telling us. With her money, she could have easily looked into finding someone more savvy to take care of her financial affairs. I put it down to bad writing. Julian Fellowes isn’t the best at getting from a to z.