Katherine Ryan has divided parents with her potty training confession - but she insists it worked for all three of her children.
Armed with the best potties and potty training books, the general advice is to wait until children show signs of wanting to be potty trained, such as hiding or complaining of a wet nappy, which usually happens between 18 to 24 months. However, all kids develop at different stages, and even if your kid is struggling with daytime dryness at 4 years old your potty training rights mean that schools can't demand that children are fully toilet trained before they start.
