To be totally honourest the awnser is yes and no, I know that sounds like a contradiction but I wore diapers all the time as in 24/7 until I was 5 years of age this was because I am highly autistic and have been since I was born in the early 1980's.
I was fully potty trained and never had any accidents except in rare occasions, however this changed after I turned 30 in 2010 some 8 years back when basically out of nowhere and not because planned it I seemingly developed incontinence problems.
Nowerdays I am trying to un-potty train myself because I am sick and tired of fighting a body that basically is telling me I should never have been out of diapers in the first place and going back to being in diapers 24/7 isn't something I am afraid or even embarrased of you see since I turned older things have reverted themselves to the state that I am basically a toddler again obviously without shrinking.
I have what I suspect may very well be neurological damage from past epilepsy which I had as a adolescent and also from a serious fall from a horse back in 1994/1995 which left me with a broken arm again not my fault the horse didn't like the fact I was on its back and I can understand that because horses have personalities and feelings of their own and they occasionally are known to rebell.
I choose to wear disposable adult sized diapers/nappies because the meds I was given wern't working and because psycalogically when I am diapered I feel young again so this is my way of self help or thearepy from years of problems with bullying as in being a victim.
Going back to the subject I consider myself sort of on the cusp of being in potty trained but still with some independence from diapers when I need it as my problems are intimittent.
I hope this awnser's your questions
Yours sincerly
Chinababy888.