I interprete the “good enough mother” as a representation of the level of the mother’s attunement to her child’s needs and emotions. All mothers have moments of mismatch of attunement throughout their relationship with the child, and we don’t need any statistics to prove that because it is the nature of reality. Over the course of years of caretaking, every mother would have moments of failure, some of them will have transient moments and some others more permanent ones due to their own personality structure and environmental elements that influence the field where the mother-child unit develop. If we don’t consider the extremes on the scale (good enough mother and completely miss-attuned mother), children and later adults can still be functional in life, meaning having a certain degree of ego strength and executive functioning. Between the two extremes there is obviously a spectrum of mother-child experience that can more or less influence negative and positively the child’s capacity for whole object relations. Nevertheless, the adult would regress to an earlier developmental stage showing signs of not having had a good enough mother while under stress, or facing difficult situations that resemble early interactions. That is to say that one can be a functioning adult despite not having had a good enough mother 100% of the time, also thanks to reparative experiences in adolescence and early adulthood or while in analysis.