Low carb works well for the whole family. My husband loves it because the majority of meals are mostly meat.
I don't think you will be able to do it if you don't eat eggs. They either make up the bulk of my meals scrambled, fried, or as an omelette or I eat them boiled as snacks. I can't imagine you will be able to eat low carb without eating eggs.
Are you having success with ww? Why not stick with that, then you can have your museli, fruit and yoghurt.