It's Potty Time Is Not For Parents. It was designed for children in order to take as much work off the parents as possible. Children should begin watching this video as soon as they watch TV. They will not potty train at this time, but they will learn the songs and sing them all the time. When their bodies are ready, usually between 18 & 24 months, they begin to understand the songs they have been singing and quickly translate the words into action. In no time at all they develop proper bathroom etiquette.