The majority of research collectively suggests AO retention into adulthood indicates a degree of emotional vulnerability and is indicative of deeper psychological distress. How and why attachment to specific objects persists remains unknown, however, and requires more research. Object attachments in adulthood are regarded as irreplaceable and personal to the individual self, with authenticity to the self seemingly elevating the value placed on the collectibles. Interpersonal factors, specifically interpersonal attachment style & potential for empathy, are theorized to play a significant role.