Hi Tom, Not a mental health pro, but married to one. A fetish developes at or prior to puberty. In my case, it was at 11. In my opinion, it is brought about by an object that is associated with shame, humiliation or taboo. In my case, it was being made to wear a diaper and the teasing and baggage that came with that. One point you mentioned that I would like to touch on is the use of drugs like DDAVP. It's been my experience that giving kids drugs like this and ridilin do more harm then good. I was A.D.D as was my sister (also bedwetter). She got drugs and I didn't . The drugs destroyed her chances of learning and she can't spell her own name. She went on to become and IV drug user and has aids now. On the other hand, I did pretty well in school. I saw the same pattern in my nephews. I've seen it in other kids too. IF it's a diaper fetish vs drugging a kid for a few dry nights, bring on the diapers. Reader