Couples who work and have children tend only to have small families because they can only afford a certain size home on the wages they get. Yet our perverse welfare system pays a single mum the same in welfare as a couple would get if they earned 23K between them. The single mum gets a free council flat with rent and council tax paid. The single mum then gets child benefits, tax credits and job seekers allowance. Feckless freeloading couples who choose not to work and just breed large familes are given free large council houses ( they could never afford a house this big if they had to get a mortgage.) . We have seen Somali families with no skills being housed in expensive areas of London all paid by welfare.