Haven't read thread so this may have been said, but imo this is a shocking shocking idea and makes me want to weep.
CB is, to me at least, a statement of rights. Rights for a child. No matter who gets it or why, it's somehow enshrined in my mind, as a statement of belonging for the child.
I don't care if people who have squillions get it. Their children are just as deserving. It might be an old fashioned view, but it is imo literally like taking sweets/aptamil from a baby.
How fucking dare they? I mean, how dare they? It's just wrong. It's cynical, classist (yes, just like racist) and altogether fundamentally Wrong. Last bastion of the wicked.
And as a footnote, all the threads on relationships where an abused woman is advised to get child benefit paid into her lone account as a matter of urgency - well, it won't matter anymore will it.
It's the Principle here. When/if Kate Middleton has dc, she is just as entitled to CB as me - a cleaner earning 5 grand a year.