There is a reason why not even Thatcher meddled with Child Benefit- its too expensive to monitor and operate a full means tested system on what is a relatively small sum but one which is universally applied.
Overall its the amount of net income a family takes home after tax and childcare costs that really matters so I am not particularly hung up on this particular benefit if an alternative means an overall saving for families who need it most and there is a system that can be logically applied. However I don't think this government is too concerned about logical application.
Unfortunately I can't attend the demo today but would be prepared to attend others in due course. I suspect there is a whole generation out there who have still to take part in public protest. Bring it all on!