Keeping them fed
Every couple deals with their finances differently, and some are better at talking about them than others. When you add a child into the mix, and one partner is working less to look after the child, it gets even more complicated. That’s before you even factor in the topic of breastfeeding.
I have to admit, I think this guy’s stance is pretty awful. I’m assuming that both of them decided to have a baby together, and it’s generally considered that both parents will be responsible for feeding their child. I would encourage them to take this opportunity to talk about their finances and their responsibility, carefully.