I have pooped my diaper at school when I was 8 years old.
When I was 8 years old I decided to start wearing diapers to school which were the thick plastic backed pampers like the diaper boy Tommy was wearing in the pictures below.
I peed and pooped them and loved the feeling of them.
I wished I could wear them everyday then but I could only wear then when I had them which was not all the time.
Diapers are more comfortable and feel great when wet or poopy and they are much better than holding it and having to run to the toilet or find a toilet.
All kids should remain in diapers no matter the age.