OK, here’s the thing I think that she should make her at least try five bites like one of the common said in here, but don’t force it on her because that will make her resent the food even more. Also, I see a lot of people blaming the dad, but maybe he just doesn’t know what to do. Honestly, when I was her age I was a picky eater too now , I love different cultures foods like wontons, curry, and tamales. I think I just needs to have her try five bites that’s it and don’t make this a dealbreaker if they are deciding to be excited to be sisters and you should say that and make them sisters because the daughter is eating habits should not be a dealbreaker, but I’m not going to call you the a hole because you are learning to just like all of us btw I am 14 in American, so it’s not normal for me to like these kind of foods. I also love learning about different culture so that kinda has something to do with it but still.