This. Austria has generous parental leave policies but the effect of that is that as a woman in your late twenties or early thirties, you will have a hard time changing jobs in highly skilled positions as the employer will expect you'll get pregnant soon and will need to find a temporary replacement for you which is impossible as no highly skilled worker wants to be on a fixed short term contract for the same pay, so many employers who can't or don't want to eat the cost of redundancy will prioritize hiring males instead and spread your workload while you're on leave to the remaining workers, causing them to be overworked for that period.
That's the hidden cost.