Because everyone wants their child in underwear, not a diaper or training pants( aka pull-up)
Truth be told, they should never be toilet trained until age 16.
The front of most all adult diapers have more SAP than the back, therefore wearing it backwards will only cause leaks, I believe this is due to more males wear diapers than females.
They where not exactly happy to change my poopy diaper, but they expected me to poop in my diaper as part of the punishment I was receiving.
By age 10 I had to change my own diapers, but only when I was told to change.
Deep in the woods hunting or just hiking and there's not a toilet around for miles.
Your choices are drop your pants and drop your load, or fill your diaper and change whenever you get the chance.
He happens to be my brother -in-law, and has known I wear diapers ever since he married my sister.
He just has never seen me wearing just a diaper and shirt before.