I thought the same thing however for some people losing face and neck weight can be really hard. Im one of them and I think its just because whenever I eat fatty foods thr first place it goes too is my cheeks/neck but it's also harder to loose. It's not like you can step on a treadmill and it will burn cheek fat, you need to do certain excersises to help loose the weight and if they're not being done then it'll take longer to shift. It could also be the bone structure on the face, if she has a bigger bone structure and wide neck etc then that could also be a cause & it could be that she's lost all the weight she could loose on her face but it still looks big because of the bones. I'm not an expert but I'm assuming it's just because it's not as easy for everyone to loose face fat as it is for others.
Ps. If anyone does know pls let me know cuz I need to loose my face and neck fat too
