I remember being in elementary school... actually it was a catholic school. In the younger grades we took a bathroom break mid-morning and mid-afternoon. If we had to go besides that, the teacher would ask, can you hold it until bathroom break? If the answer was no, she sent you about your business. In older grades, teachers did not have a problem letting you go when you needed, except if you had to go every day or multiple times a day, you might need to have a conversation with the teacher, parent, and or principle to find out if you were OK or if you were trying to get out of class.
So in recent news...
"A Brooklyn elementary school teacher has come up with a controversial idea to get her children to hold it in."
I know before we started homeschooling, you couldn't pay my kids to go to the public restroom. It was just too nasty. This inability or refusal to go to the bathroom at school actually did cause, or at lease exacerbate existing health problems for my son. So when a teacher refuses or limits a child's ability to eliminate, it is problematic.
Then there's the risk of people taking it into their own hands. A friend of my mother's once told the story of a teacher that refused to let her go to the bathroom. So she stood next to the teacher and peed on purpose. She got to go home and was never denied a bathroom pass again.
FREE HOME EDUCATION WEBSITE
MY BUSINESS WEBSITE