The worldview described in the comment and by people who upvote is something that I'm not jealous of. But as this is not a moral lecture about gender equality, how important decent childhood is or whether the society would be better without reproducing, I'd just like to point out one immediate bias/flaw you express:

The parents who can abuse parental leave are quite privileged. -Have a reliable partner who wants to have children with you -Have required fertiliry to "time" pregnancy -Work for a stable company (rules out small business owners, self employment...) -Be employed in the first place

How many % you think this would represent of the women aged 20-35 in your country? Do you believe that these women will contribute less taxes to the society than society uses on them? Are these tax payers net-negative part of society?