I pretty much stopped wetting the bed by the time I was 10, although there were a few isolated incidents afterwards, the last time when I was 14. After that, it's only happened a handful of times when I've been pretty drunk.
I had a dream a while back that pushed the boundaries though. In the dream I was a kid again, although I get the feeling that I was an older teenager, maybe 16 or so, which was strange in itself, as my "little side" is much younger than that. In the dream I was with dad, and a bunch of older people that I didn't know, probably friends of his, and I needed to pee badly. I kept looking for a toilet or at least somewhere to go, but stuff kept happening that always prevented me from going. Suddenly in my dream, I peed myself a little bit, and told dad I needed to go to the toilet straight away, as I was about to wet myself.
"You're wearing a nappy, just go in that" he replied.
Then I realised that I was indeed wearing a nappy under whatever pants I had on. Our group kept moving, but I had to eventually stop them and say "Just wait a minute, I really need a wee."
So in my dream, everybody stops and waits for me, but no one really paid any attention to me, as I stood still and released my bladder into my nappy, feeling shame but relief at the same time.
That's when I woke up. As soon as I had woken up, I panicked, convinced that I had wet the bed. Thankfully I hadn't, but I still needed to check with my hands just to make sure. The weird part is, I wasn't even badly desperate to go when I awoke, at least no more than normal.
But for some reason my brain told my sleeping body that I was in a diaper, and it was quite okay to use it, and if I hadn't woken up just when I did....