Using the toilet is one of the first and most significant skills your kids must learn. But, do can you teach them, or are they simply not ready until a certain age?Toilet training is an uneven process, but it is an inevitable one in nearly every child’s life. By three to four years of age, most children have achieved daytime urine control and full bowel control (both day and night). Your child, too, will move more or less steadily from diapers to underwear, from potty to toilet, and from daytime to full-time management of his elimination processes. Wendy Sue Swanson, MD, discusses the ins and outs of toilet training your child and how to overcome the challenges.