I am pro paternity leave. Not at the expense of maternity leave, and I passionately believe that women should not have to return to work until at LEAST their child is fully weaned onto solids at a medically acceptable time.
But maternity leave is about more than the right of the mother. It is about the rights of the baby, to be properly nourished (physically and emotionally) for as long as they need.
There is a period when only the mother can undertake this nourishment (if they are breastfed) but equally there is a period when the father can and should step up and this would benefit both babies AND women AND men AND many families.
Babies and fathers would benefit because there is much research on the value of present, hands-on fathers and anything which helps forge that bond is of value.
Women would benefit because until men are eligible for comparable paternity leave and career breaks (whether or not they choose to take them) women of childbearing age will continue to be discriminated against in the work place, and until more men (particularly politicians!) are encouraged to do a long stint of solo- childcare, the work of caring for babies and children will continue to be undervalued and underpaid by our society.
And society will benefit because it's proven that absent, uninvolved fathers are implicated in a multitude of social problems.