I think that we in the UK have got to the point where we consider it a human right to be able to CHOOSE whether to have children and to optionally be able to do so without the law or government policy imposing some sort of limit on how many people might choose to have regardless of wealth. This is regardless of any thoughtful or more obviously common reckless choices that might affect circumstances that lead to it. Morally we've got into a mindset where we don't want to create a situation where only those who can afford to should and those who with less wealth shouldn't. Over the last century this has stemed from the mentality of socialist thinking that lack of financial wealth is not necessarily a choice within our system. If every one could earn over 60 grand a year with no kind of internal national hyper inflation going on then I doubt we'd be having to think about this to begin with. 

As far as I was aware it used to be the case that there was the mentality that the more children you had the more support the parents would get in old age, I guess this isn't so much the case in modern day Europe but it still is a very prevalent reason for having children in many Asian cultures especially in developing parts of the world. This is also the reason that within such cultures boys are more greatly desired and valued then girls as potential offspring which also links into the whole issue of the severe miss-treatment of females within underdeveloped societies. Its certainly more common among the least wealthy within such developing regions of the world.

I'm skint, but I know for sure that if I was earning over 60 Grand in GBP a year upward as a sole earner I personally would not mind losing my right to receiving child benefits, and I certainly wouldn't mind it being paid to people that earn under 50 (possibly even a lower earning cut off threshold then that). But then again I would still be interested in who my money in the form of taxes was being given to and how it was being used. Child benefit, how much is that in the UK in cash terms anyway? Its like an extra  10 to 15 quid a week per child. It's said that any potential change in policy would only affect would be parents post legislation enactment and not for those already receiving it prior to any potential changes.

Speaking of what people do with their money, what if an employer only liked their employees to spend the money that they paid them in a certain way due to the employers personal beliefs, and in finding out that their employees spend it differently fired their employees. Is that fair? I guess the difference is we should know before hand what we're signing up for and the duties certain roles carry. But at the purest essence and against my somewhat very flippant example it could be seen like that. At least reality TV is in full view and public opinion can turn on a knife edge to be very scathing at times.