10–2 Why is this important? Now for the first time in our nation’s history, women are half of all U.S. workers and mothers are the primary breadwinners or co-breadwinners in nearly two- thirds of American families. This is a dramatic shift from just a generation ago (in 1967 women made up only one-third of all workers). Workplaces are no longer the domain of men. And while men and women still tend to work in different kinds of jobs, most workers under 40 have never known a workplace without women bosses and women colleagues. The number of women-owned businesses is growing at a rate of almost 23 percent, 2½ times faster than the growth in the number of total businesses. Many of the fastest-growing jobs replace the work women used to do for free in the home. The demand for home health aides, child care workers, and food service workers, for instance, has increased sharply.