The desire to regress and act like a baby has inevitably involved shame or guilt. At least is has for me and I suspect for other ADISC members. The shame part can come from your own view of what you "think is right" or it can come directly from parents, siblings, spouses or friends. I recently witnessed an example that bears reporting.
I was speaking with a woman at a park who had in tow what appeared to be her daughter and two grandsons. The boys were approximately 1.5 and 3.5 years old, respectively. We got on the subject of animal reproduction and I remarked on the behavior of a lizard who laid it's eggs in the soil and left them to hatch on their own. The woman then turned directly to the 3.5 year old and said, "look Brandon, these baby lizards don't need to be taken care of, they don't need bottles and diapers."
It was obvious to me that what she was really saying was "grow up kid, if these lizards can make it without being babied, then you can too." I suspect the 3.5 year old boy was still clinging to babyish things and she wanted him to drop it. That's called playing the shame game or the guilt card. My mom was an expert at it. It means getting someone to feel bad because of a behavior they feel you shouldn't be doing. I wonder how many shame examples are in this community?