The welfare state began in Europe in the late 19th century, but reached its climax after World War II. Europe was devastated and needed to be rebuilt, and at the time, the guarantees of social security, employment, and retirement were real human progress. The population had also declined, and in France, a country of pro-natalist tradition, policies that encouraged having children were more of a priority than ever. Financial support for mothers and other family benefits were introduced, and these pro-natalist policies still exist in France today.
Generally motherhood is glorified, to the detriment of women that don’t have children. Glorifying motherhood to this point, and to the point that it can seem to be an obligation, can also be considered in attitudes that victimize women and demonize men. The persistence of beliefs such as women are weaker than men, can put women into defenseless roles that are reinforced by other, equally damaging beliefs, like women are kindness incarnate because they can give birth. Such obstinate views like women are incomplete without kids, or men are always the bad guys, can contribute to a perception that women that make different choices are abnormal or bad, and therefore are easier for society to reject.