I mean, I kind of get how some loony ABDL stories presented as fact can be believable and gain such momentum. ABDL isn't physically impossible like some other niche fetishes, though it does disgust most normies. The diapered bride thing is kind of believable considering that just heavy and elaborate costumes and clothing for entertainment and fashion may not be easy to quickly get out of if necessary and may require assistance to do so. There's also that some particularly heavy and bulky costumes (like in some monster movies or just sports or theme park mascots) can require built in ventilation and hydration for the wearer so they don't potentially die from dehydration or heat stroke while wearing it for extended periods. Even in the Middle Ages a warrior wearing heavy armor that required assistance to don or remove might need to in fact piss or shit himself because he could not easily take it off or put it back on.
Even some ABDL stories involving diaper discipline or forced regression that would count as abusive if they happened in real life has some real world parallels. There's cases of neglectful parents not toilet training their kids properly and also cases of parents using humiliation to punish their kids.
There's "reparenting". It was a fringe form of psychotherapy from the 60s, invented by Jacqui Lee Schiff, that involved a therapist regressing the patient and treating them like a child in an effort to cure them of psychological problems and was even used on juvenile delinquents. It's exactly the plot for various fetish stories. She even wrote a book about it. Even the covers for two editions scream "this is an ABDL fetish" thing, but this is something people actually did try for treating mental illness.
https://en.wikipedia.org/wiki/Reparenting
Related to reparenting there's also "rebirthing" which sounds like a regression and unbirth fetish thing, but was also a fringe psychotherapy that people actually tried to treat children with. The idea behind it was to break a child's will and reduce them to a more infantile state then the caretaker using this to modify behavior and gain the child's trust which may also involve treating them like a baby with things like bottle feeding and cradling the child against the body. A lot of it sounds like deliberately abusing a kid then trying to induce Stockholm Syndrome to get them to behave and attach to their caretaker. Specifically part of it involved a form compression therapy and restraint that resulted in some deaths, people going to prison, and a couple states making this form of therapy illegal.
https://en.wikipedia.org/wiki/Rebirthing_(attachment_therapy)
>>19621
It's nothing new.
I know this sounds incredibly cynical, but even if parents don't intend to and try to avoid giving their children baggage, even if they intend "I'll raise my children better than my parents did me and give them the best", they'll still end up doing it. Some kids handle it better and some parents manage not to fuck up their kids enough to cripple them psychologically and may even manage to help with innate anxieties and sorrows, but it still happens regardless. Our parents did the same and any of us with kids will also end up doing it. It's unavoidable. People are flawed and nothing human is perfect. This isn't an excuse or condemnation, it's just a statement of fact. Larkin's This Be the Verse mentioned the concept back in the 70s even.