I agree. We should instead disallow non-bearing children couples from being married, or remove tax benefits. IMHO, we could have made it all very clear, however, most people would not understand if government would try to redefine 'family' to require kids, because common understanding of family is a deeply conservative thing, and even most liberals would not feel that change good.

I would go even further, and would provide tax credits for anyone planning to have kids in, say, the next 5 years, and I would take money back after 5 years, if no kid is out.