Jared Hunt and Dorian Kendal at home with their son, Jackson, 2, and dog, Parker in San Francisco, May 3, 2018. Though same-sex couples tend divide up chores more equally, new research shows that when they have have children, they often begin to divide things as heterosexual couples do — one partner often has higher earnings, and one a greater share of household chores and child care. (Jason Henry/The New York Times)