...because a young woman who grew up reading nasty-minded carping about her mother's weight in every newspaper is going to have an unshakeable confidence in her own body? 
I hate the DM's passive-aggressive 'oh, well done' attitude to weight loss, all this referring to 'battles' and 'struggles', as if women's bodies are something to be fought with. If anything, I think poor Beatrice has been looking a bit haunted lately - as if she's got an inkling that the whole "Skinny Di/Fat Fergs" photo story's about to be played out again.
Gorgeous swimsuit, lovely curvy girl. I hope she doesn't try to diet herself into oblivion.