Mothers make their way back to work The Delta variant is receding, and school-age kids are finally able to get the vaccine, notes Alicia Modestino, an economist at Northeastern University. That means more schools will be able to fully reopen and stay open, and the child care constraints that are keeping parents — usually mothers — at home will fade. Wages are also increasing, which could be playing a role in bringing working moms back, Modestino says.