The phrase "fathers participating in childcare" still carries, in many contexts, an undertone of assistance — as though the primary job belongs to the mother and the father's contribution is support or backup. The language of "helping" lingers even when it isn't intended.
The developmental science tells a different story. Father involvement does not simply supplement what the mother provides. It operates through a partially distinct pathway — reaching the child through mechanisms that mothers' involvement, however high its quality, does not fully replicate. Understanding what that pathway consists of is useful for any family thinking about what it means for a father to be genuinely involved.