I guess I was (at least enough to remember it around forty years later). But I probably would have been much more mortified if I needed the Pamper for a year or so longer than I did. I don’t know if this experience helped me to (pretty much) finish training before I turned six or whether I would have trained by then anyway.
I think I was more bothered by the fact that my four-year-old classmates were less willing to participate in activities with me because I was seen as being more babyish than they were. At the time, my parents assumed I was just being stubborn, but when I was a Freshman in college I was finally diagnosed with a neurological condition (from a small stroke (a burst/leaking blood vessel) on the right side of my brain) caused by my premature birth.
Before my diagnosis everything was assumed to be normal. My condition may (or may not) be part of the autism spectrum (I have heard and read conflicting information on this over the years (even from some doctors I have seen)). It also has some effect on my movement (especially on the left side of my face) but it has become less noticeable over the last twenty years or so. My neurologist was actually surprised that I trained at all when she performed the neurological exam on me.
She told me that with only another eighth or sixteenth of an inch of damage I might not have been trained (or I would have trained at least a few years later than I did (at best)). Also, learning to walk might have taken longer (at best) under that slightly different set of circumstances. And so it looks like I actually lucked out (in the scheme of things).
Also, I can generally hold it, but even at my age (mid-40s) accidents (both kinds) can still happen if I am tired, nervous, or too far from a bathroom. I generally cannot hold it for more than an hour or an hour-and-a-half without significantly reducing my fluid intake and this is not sustainable in the long term (due to the possibility of dehydration). Therefore I may buy some adult-size disposable products soon for situations that require me to be away from a toilet for more than an hour-and-a-half. But to keep as much control as possible I plan to wear underwear and use the toilet the rest of the time.