For me it was being forced to wear diapers up until the age of 13. I wanted an alarm that would sound when I wet, but my mother didn't think it would be fair to my brother (we shared a room) so for his well being I had to wear diapers to bed. Of course I went through puberty while having them around, I think that coupled with the feeling of "safety" from my parents anger of a wet bed is why I am into the fetish today. Also, I have a distinct memory of having to sleep in a crib at about 5 years old at a friends house incase I wet. What got the rest of you into diapers, or kept you from getting completely out of them?