So childless men should be expected to pay for free child care through taxes, but we’ll keep fathers in check by having the social expectation they take on a greater role in childcare? That system isn’t really engineered to optimize for men bonding with children, it will just inevitably result in polygamy really.

We had a system that optimized for male attachment to children and it was the societal expectation to marry and for marriage to really be til death do you part.