Today, the distribution of parental roles is organised around an equity that is more than justified, but has the consequence of creating a territorial watershed where the negotiation of values, opinions, wishes and deep-seated needs is constantly activated. Where societal definitions used to provide a framework and contentment for transactions within the couple, the new generation finds itself obliged to cooperate and redefine the spaces and roles of each, with intergenerational issues multiplied tenfold and marital crisis often heightened.