There are regulators, they don't bend anything to their will because they still have to pray to get their spells for the day (if we are going with the Vancian system). They think that power comes from some divine source, along with the source of healing, but some priests (mostly adventurers) suspect this isn't true. Also, people get denied basic freedoms every day in our world, even in Europe and the USA, there's nothing surprising, novel, or unthinkable about that. Something which affects everyone equally would be the ban on the consumption of drugs. I should have the possibility and freedom to use drugs recreationally in a safe and controlled environment (at home), but I don't. You would say "but some people won't able to control themselves and it might become a problem". Well, that's the reasoning behind the regulation of babies too, that some people will be baby machines and the resources won't be able to keep up with that. If you want to reason yourself out of this, then here's your roleplaying opportunity. As for the women barbarians, I still haven't read a single argument against it. This society thinks the women have already performed their duty, i.e. having a baby, so forcing her to have more babies conflicts with their cultural and religious values. Barbarians mostly work as mercenaries, but are frequent adventurers as well.