No worries! Most skills 3 and 4-year-olds need to learn are acquired within their preschool year, right in the classroom. What our teachers do require is that a child coming into the classroom be completely potty trained, well out of pull-ups for daytime and naptime so that the focus can be on learning and playing without the distraction of training, or the time changing out of ‘accidents’ takes away from those precious moments.