While she breastfed her own children, Courtney Jung, political science professor at the University of Toronto, increasingly felt it should be a choice, not a moral imperative.

In her book Lactivism: How Feminists and Fundamentalists, Hippies and Yuppies, and Physicians and Politicians Made Breastfeeding Big Business and Bad Policy (Basic Books, 2015), she argues the benefits of breastfeeding are overstated and finds classism, racism and sexism behind today's advocacy of breastfeeding.

She also points out that, in the U.S., women are recommended to breastfeed for 6 months, but the absence of federal maternity leave makes it complicated and ultimately benefits the breast pump market.