For not potty training a child? Obviously some children are mentally handicapped and it may just not happen. But, I hate seeing 4-year olds in diapers. It's one thing if they are trying, and it is taking awhile, it's another just to not try. Then the same people bitch when their prek or kindergarten can't allow them to go there because they can't change diapers or potty train. Not forcing your child to potty train too early is one thing, but there is a limit.