Research has consistently shown the value of breastfeeding for development. Part of that is the biological quality of the milk, but part is also the skin-to-skin contact and emotional bonding. So, until weaning, women have a unique biological ability that men cannot quite replicate. Obviously, pumping can address some of the biology and men can cuddle their infants. However, normal emotional attachment[1] of the mother to the child also develops pre-weaning, which has its own long-term effects.
Shouldn't women be allowed to take the first year of their child's life to provide for their long-term emotional development without jeopardizing their careers?
1. in the evolutionary sense of what human psychology has been selected for, including the increase of maternal prolactin and oxytocin during breastfeeding