Given the reality of unintended parenthood and parental unhappiness, one would think that women and men who make the decision not to have children - who are deliberate and thoughtful about the choice to bring another person into the world - would be seen as less selfish than those who unthinkingly have children. Yet the stigma remains.
The less obvious hurdle is that of preparing parents emotionally and putting forward realistic images of parenthood and motherhood. There also needs to be some sort of acknowledgement that not everyone should parent - when parenting is a given, it's not fully considered or thought out, and it gives way too easily to parental ambivalence and unhappiness.