The conventional definition of infantilism means the persistence of childlike traits in adults and medically the failure to attain sexual maturity, and "sexual infantilism" is also used medically as a synonym for delayed puberty. The term "psychosexual infantilism" was used in Sigmund Freud's theory of psychosexual development to refer to individuals who had not matured through its hypothetical stages into heterosexuality. Psychologist Wilhelm Stekel used "psychosexual infantilism" as a category similar to paraphilia, including paraphilic infantilism and other paraphilias and sexual orientations.
Adult Babies and Diaper Girls
Finding a "mother" or "father" - A difficult part of life as an AB/DL is finding a partner that will succesfuly, and voluntarilly fulfill their needs. This is extremely difficult for adult babies because they desire their partner to take on a caregiver role, which means acting as a "mommy" or "daddy" to them. It is hard because not many people truly desire to take care of their significant other in this way. Female AB/DLs are not necessarily willing to be mommies. Diaper lovers may end up taking on the role of the caregiver to an adult baby. In fact, 95% of mommies and daddies started as DLs. Also, some AB/DLs "switch" roles. Switching means sometimes they may act as the caregiver and other times as the baby.