I posted a bunch in the other threads but here's the short backstory: bad scoliosis and some other birth defects kept me in diapers until 10ish (though I should have been in them a lot longer), then inadequate pads and plastic pants until I was 17 or so. Parents were nice but your typical rural stoner rednecks. Mom in particular changed me until I was 9ish, wasn't great about privacy and would often do it out in the open, just said, "Oh, nobody cares," etc.
When I was 5-7 years old (age verified), we used to live in this shack in the country, down this long gravel road from my aunt, who lived at the edge of a VERY tiny town (like, 200 people). My mom would hold my hand and take me on walks down the road to my aunt's house almost every day. At least once in the hot summer, I remember walking with her and wearing ONLY a diaper and shoes, but feeling pretty shy about it (I'm guessing I protested and mostly kept clothed after that).
On a few occasions while we were walking, I'd announce that I needed to be changed and my mom would just change me right on the side of the road. I specifically remember the dust, the rough gravel, the breeze and sunlight on my bare skin. I also remember that even though I generally loved changing time, I'd always be impatient because I was afraid a car would drive by and see me having my diaper changed (which sometimes happened). At least once, I freaked out because a car drove by but it was coming from the direction I couldn't see.
Not sure why but even though I was shy about strangers seeing me being changed at that age, I preferred to be changed outside instead of at my aunt's place--I'm guessing because I had a younger cousin (2ish) who was still in diapers, and I felt embarrassed whenever my mom changed me as well (even though I was so much bigger).