People who don’t have children pay much higher taxes than those who have kids, depending upon your state. Couple that with insulting comments and getting to do all the extra work at work while everyone acts like the dads are heroes for leaving early to get to the kids events and the moms are managing the kids lives on the cell phone all day, I think it’s ok to roll your eyes and complain to the other child-free people discreetly on Christmas Eve when you are the only people expected to be at the office.