"Mark Wolraich, director of the Child Study Center at the University of Oklahoma and author of the "American Academy of Pediatrics' Guide to Toilet Training," said children typically begin to toilet-train between the ages of 18 months and 4 years."
"No one has been able to toilet-train the bubbly, sweet-natured kindergartner; he won't bother with a trip to the bathroom, no matter how awful the consequences."
"Many of the children wore diapers, because there weren't enough employees to toilet-train them."