>>17647408This. Unlike stuff like scat, vore, furry and pedo, diapers themselves aren't repulsive on an instinctual level, and actually make a lot of sense, as their appeal is similar to a lot of "normal" fetishes such as panties (underwear) and silk (the way they feel), with an added subtext of taboo and humiliation to spice things up.
Being disgusted by diapers is a learned behavior that comes from one's surroundings often literally beating negative notions about them into you from the very beginning of your childhood (aka potty training) and encouraging you to ostracize and make fun of anyone who wears them.
While this might sound like something obnoxious furries would say, society's hatred for diapers really has a lot to do with ignorance.
There are plenty of adults who are incontinent and need to wear them, yet people continue to insist that they're just for babies, and even though most of them just have urinary incontinence, the first thing people think of is shit.
