America's parental leave situation is dire. As you probably know, America is the only industrialized nation in the world that does not offer paid parental leave to workers, so working parents are forced to use accumulated vacation and sick hours to ensure some sort of income during their time off. Even if parents are lucky enough to have paid parental leave, they might not take it all. Why? In part, it's because dads often head back to work, even before their leave is up.