Without them I would not be able to pay my childminder, use Tescos supermarket, support the multiple baby and child industries, attend baby groups, give money to charities such as the NCT or subscribe to internet and mobile phone providers. Not to mention the dozens of other industries I am indirectly supporting through my spending ''power''.
I'm pretty sure that without them the alchohol industry would go out of business! 
Total tongue in cheek emoticom.