Well, if I were never potty-trained, chances are I'd actually hate wearing diapers, because I'd have no frame of reference to compare it to--in other words, I would never have known what it was like not to wear diapers, so it would never have occurred to me that diapers are better. My interest in diapers escalated from simple curiosity, to obsessive curiosity, to sexual excitement. If I'd always worn them, that curiosity would never have developed.