Yep. In a society with an aging population and a low birth rate, people who would prefer to be full-time parents staying home and raising their kids ought to instead be doing undesirable, monotonous, easily-automatable jobs that robots can do. Or at least two families could agree to pay each other to raise the other's children, so that it counts as employment, rather than raising their own. Yes, maximizing labor force participation... That's how things ought to be.