Dieting on New Year's Day isn't a good idea as you can't eat rationally but really need to be free to consume whatever is necessary, moment by moment, in order to ease your hangover. I think it would be much more sensible if resolutions began generally on January the second.
Sometimes, his methods and his motives are questionable and even his morals are questionable in the way he does things. But I think his intention is always to protect his daughter.